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Kristi31

Gluconeogenesis, excess protein and your personal experience

Ok...so let's try and clarify this whole "excess protein converts to glucose" thing.

I don't believe excess protein converts to glucose because it just takes too much energy from the body to do all that work and it will only do so if it really needs to raise glucose levels in the blood, if too low. I COULD DEFINETLY BE WRONG. THIS IS JUST MY OPINION.  Grin

Also, I remember losing the most weight and being really thin when loading up on protein and eating moderate amounts of fat. That was back when I was mostly eating organ meats and some coconut oil. I was eating up to 1 kilo a day of protein. I later gained weight when increasing fat intake and lowering protein although the change in weight was probably due to other factors. My point is that if excess protein was converted to glucose then why did I lose the most weight when eating high protein, should be the other way around, no?

And what about the Kimkins diet where people ate lean protein and probably lots of it because it was so lean? How come the fat loss was so substantial on it and later harder on higher-fat, lower protein diets?

Something doesn't add up or maybe I'm overlooking something.

Your opinions, personal experiences would be much appreciated. Eventually, we may discover something...who knows?

There is no right or wrong here, just information sharing and healthy discussion.
Carnation

Wasn't the kimkins crowd ultra-low calorie as well?
Elli

I think so. It was low-carb and low-fat. I remember seeing the sample menuds: pure protein shakes and grilled skinless chicken breast. It's kind of menus that is hard to be calorically high; two of the three macronutrients have been severely lowered.

Many of the Kimkins followers suffered from serious health problems so I don't think high protein diet is to be recommended unless it's paired with high-carb or high-fat. Well, at least moderately high-fat. I don't want you to risk your health, K Sad  Though I know you won't be doing extremely low-fat version.
nola

glucogenesis

Hi Kristelle

I think glucogenesis does happen when there is excess protein which has no where to go and is not being used.
I know that when my carbs are very low  I need to eat extra protein to compensate (for energy for exercise and general well-being)- fat does not fill the gap.  My feeling is that my body does use glucogenisis to compensate when carbs are insufficient.  I am still in GDM..
I think a persons sensitivity to glucogenesis in terms of how it affected their blood sugar could be related to their level carb senstivity.
I think doing lots of exercise creates a need for either more carb or more protein

I think your weight loss with lots of meat and coconut oil has other factors that make it work regardless of glucogenesis or not;
coconut oil initiates weight loss for some
maybe overall calories were less on this diet than when you added more fat
even if your body was converting the extra protein to glucose via glucogenesis- maybe your body was using all this glucose for bodily functions and not needing to store it as fat as there was not really excess.
if your carbs were very low- some of the converted protein would have been used to fill the gaps where glucose was needed..
(am i making sense?)
maybe higher protein is more suited to you; I believe everybody has slightly different needs- some do better with more fat, and some with more protein
maybe decent amounts of meat/protein  and some fat is your ideal diet..

kimkins works because it is basically a very low calorie diet

the other side of eating lots of protein is that it is thermogenic (according to Tom Venuto and some others);ie, the body requires quite a lot of energy to digest/process the protein; and it burns up a decent percentage of calories in doing so

nola
Avalon

Quote:
We are already familiar with the fact that body fat comes from the storage of carbohydrates as fat. Remember that excess glucose is converted to body fat by the liver. So, the unhappy news is that, on the average, about 58% by weight of the protein we eat converts to glucose, and if the body doesn't need that glucose for energy, it can and does convert it to body fat.

What this means is that of every 100 grams (3 1/2 ounces by weight) of protein you eat, about 58 grams of it becomes sugar. We are talking about the weight of the protein itself, not the weight of the protein food. A 3 1/2-ounce piece of meat weighs 100 grams, but it only contains about 20 or 25 grams of protein, depending on the kind of meat. The piece of meat would give about 10 to 14 grams of actual carbohydrates, not 58 grams. The fact is that, on average, 58% of all protein converts to sugar, and is therefore the major source of what we in the low carb world call hidden carbs.


http://www.carbsmart.com/prohorror.html

Excersice? Activity levels?

Protein calculator

http://www.phlaunt.com/lowcarb/proteincalc1.php

Dunno
adwred

Yes, protein is converted to glucose above and beyond your blood sugar needs if it there is no room in the muscles for the excess glucose (because you either eat too much protein or you don't exercise enough). I've seen it happen in my own body many times on ZC, since I started taking my BG.

Unfortunately, although this is a great question, asking people's experience with this will not give you the most reliable answers unless they're actually checking BG - otherwise, there is no way to tell what's going on with BG. But yes, weight gain can be an indicator. Likely when you were eating higher protein and lower fat, your calories were just lower than when you increased fat by a lot, Kristelle, and that's why your weight was lower.

I had a chronically high BG on a zero-carb diet because I wasn't yet exercising the way I do now, and the glucose had nowhere to go if I consumed more than about 80 g protein a day. Now that I weightlift, my body needs more like 130 g of protein to support my lean mass, but if I exceed that, I get high BG, even with exercise, (unless I do something especially vigorous or lengthy, like do a 2-hour hike, etc.).
ecrivain

Re: Gluconeogenesis, excess protein and your personal experi

Kristi31 wrote:
I don't believe excess protein converts to glucose because it just takes too much energy from the body to do all that work and it will only do so if it really needs to raise glucose levels in the blood, if too low. I COULD DEFINETLY BE WRONG. THIS IS JUST MY OPINION.  Grin


My opinion is that gluconeogenesis is not like Tinkerbell, it exists whether you believe in it or not.

Effects of brief starvation on muscle amino acid metabolism in nonobese man.

Quantitative analysis of amino acid oxidation and related gluconeogenesis in humans.

Gluconeogenesis:  The liver is the major site of glucose synthesis in higher animals.

Kristi31 wrote:
And what about the Kimkins diet where people ate lean protein and probably lots of it because it was so lean? How come the fat loss was so substantial on it and later harder on higher-fat, lower protein diets?


As others mentioned, Kimkins was a severely calorie restricted diet.  It was also a scam and a horrible, sad disaster.  Not only were the results unsustainable, it was downright dangerous.

Kristi31 wrote:
Your opinions, personal experiences would be much appreciated. Eventually, we may discover something...who knows?


I can certainly relate a personal experience.  I'm smelling ammonia in my sweat right now.  I just jogged 7 miles.  My nutrition for the previous two days was higher in protein than normal, without as much fat.
Avalon

TINKERBELL! NOOOOOOOOOOOOO!!!!!!!!!!! SAY IT AINT SOOOOOOOOOOO!!!!!
Viking Dan

58% of protein does turn to glucose, but first 25-30% of it gets spent in the cost of digesting it.

So...when the smoke clears only 42% gets gluconized.

*This has been a public service announcement from a man who reads WAY too much.*
jl53563

Viking Dan wrote:
58% of protein does turn to glucose, but first 25-30% of it gets spent in the cost of digesting it.

So...when the smoke clears only 42% gets gluconized.

*This has been a public service announcement from a man who reads WAY too much.*

58% of protein.....or 58% of excess protein?  It's hard to imagine the body converting to glucose protein that could be used for building, repair, enzyme production, etc.
adwred

From the looks of my BG after eating, it looks like it's total protein, not excess protein.
Nicola

As Kristi mentioned; this forum - "Charles" has some good information:

http://www.livinlowcarbdiscussion...showthread.php?tid=488&page=1

Perhaps "Charles" would be helpfull on the topic of protein / insulin?

Nicola
jl53563

Ok, from my own experience:  Last year I did a one week experiment.  It was high calorie, high fat, hight protein.....high everything, except carbs, of course.

I averaged over 4100 calories per day and about 270g of protein.  It's hard to imagine that this was not excess protein.  The result?  I lost 2 pounds!  If the protein, even only the excess, had been converted to glucose, that is alot of glucose.  Surely some of it would have been stored as either fat or glycogen.  This was apparetnly not the case.

Here is a summary and a link.....

Well, the results are in. I didn't plan on reporting this at 7 AM, but I couldn't sit on this all day.

Weight 162

I lost 2 pounds!!!
I averaged 4138 calories per day.
That's an extra 1300 calories per day
An extra 9300 calories for the week
I "should" have gained a llittle over 2.5 pounds.

The average breakdown of macronutrients looks something like this.
65% fat
26% protein
8% alchohol
1% carb

It's interesting to note that I consumed alcohol every day, about 2 glasses of dry red wine on average.

Ok, does somebody with more technical knowledge than me want to take a stab at explaining all of this
?

http://magicbus.myfreeforum.org/j..._Calorie_Experiment_about621.html
adwred

Without measuring your BG, Jeff, it's difficult to know what was going on there. You do have a lot of LM and are active (even if you weren't working out during that week), so chances are your muscles had lots of room for extra glucose. Also, alcohol (wine in particular) lowers BG, so that may have had an effect.
jl53563

adwred wrote:
Without measuring your BG, Jeff, it's difficult to know what was going on there. You do have a lot of LM and are active (even if you weren't working out during that week), so chances are your muscles had lots of room for extra glucose. Also, alcohol (wine in particular) lowers BG, so that may have had an effect.

I agree that we can only speculate.  I also agree that my muscles would have had room for extra glucose(glycogen), but if any significant amount had been stored, I would expect it would have shown up on the scale.
Trem

adwred wrote:
Also, alcohol (wine in particular) lowers BG, so that may have had an effect.


Wow, I didn't know that alcohol lowers BG.

*Goes to the nearest bar to get completely sloshed*
jl53563

Quote:
The finding by the Karolinska Institute in Stockholm, Sweden, is the first to show how alcohol is able to lower blood sugar levels. What happens is that by sending more of the pancreas's internal blood flow to the islets, alcohol spurs insulin production, which in turn lowers glucose levels.


http://www.diabeteshealth.com/read/2008/01/23/5630.html

Ok, so we have increased insulin levels, presumably increased glucose, from GNG from protein, and lots of excess calories.  This sounds like a recipe for certain weight gain.  Yet it didn't happen.  Not to me, at least.
adwred

It did to me.  Dunno Not during my 'binge' week or excess calories and protein and fat, but the week immediately following, actually. I think a week isn't necessarily long enough to tell much of anything.
Erasmus

If I recall, GNG is halted in the presence of alcohol.  

-E
adwred

Well whaddya know!
jl53563

adwred wrote:
It did to me.  Dunno Not during my 'binge' week or excess calories and protein and fat, but the week immediately following, actually. I think a week isn't necessarily long enough to tell much of anything.

Granted, one week is not very long.  But that's why I overdid the calories by so much.   I really think overeating 9000 calories would have shown up, even in as little as one week.
adwred

Well, again - it did with me. So  Dunno
jl53563

adwred wrote:
Well, again - it did with me. So  Dunno

I suppose every body does not necessarily respond to similar situations the same way.
jl53563

Erasmus wrote:
If I recall, GNG is halted in the presence of alcohol.  

-E

According to this, I should be dead!  Well, at least brain dead.  Laugh

Quote:
DO NOT DRINK ALCOHOL IF YOU ARE KETOTIC!

Alcohol is a powerful inhibitor of gluconeogenesis. In fact, it forces part of the gluconeogenic metabolic process into reverse. This means that if all the glucose in the blood is being derived from gluconeogenesis then the consumption of alcohol will inevitably cause the blood glucose level to fall. Worse still, the alcohol also stops ketone body production, thus leaving the brain entirely without fuel.

A person who is ketotic is 100% reliant on gluconeogenesis to maintain adequate levels of glucose in the blood. If, under these circumstances alcohol is taken, the person will become disorientated and might lose consciousness, not just from the alcohol, but from low blood sugar. Needless to say, this could be very dangerous, and even fatal.

Alcohol does not have these effects if the glycogen stores in the liver are normal. Under these circumstances the blood glucose level in the blood is maintained by the breakdown of liver glycogen, a process that is not influenced by alcohol. If a person becomes confused under these circumstances it is due simply to the pharmacological effects of the alcohol
!

http://academic.sun.ac.za/medphys/ketosis.htm
Erasmus

adwred wrote:
Well whaddya know!


Oh it's true.  It should be noted though, if you are on zero carb and have no glycogen reserves, your trip to blackout island will happen MUCH faster than expected.

Best to avoid straight spirits and very dry wines in such cases.

Might I suggest a Margarita?   Toast   It even has lime juice in it.  And we all should eat our fruits and vegetables, right?   Roll Eyes

-E
adwred

jl53563 wrote:
Erasmus wrote:
If I recall, GNG is halted in the presence of alcohol.  

-E

According to this, I should be dead!  Well, at least brain dead.  Laugh

Quote:
DO NOT DRINK ALCOHOL IF YOU ARE KETOTIC!

Alcohol is a powerful inhibitor of gluconeogenesis. In fact, it forces part of the gluconeogenic metabolic process into reverse. This means that if all the glucose in the blood is being derived from gluconeogenesis then the consumption of alcohol will inevitably cause the blood glucose level to fall. Worse still, the alcohol also stops ketone body production, thus leaving the brain entirely without fuel.

A person who is ketotic is 100% reliant on gluconeogenesis to maintain adequate levels of glucose in the blood. If, under these circumstances alcohol is taken, the person will become disorientated and might lose consciousness, not just from the alcohol, but from low blood sugar. Needless to say, this could be very dangerous, and even fatal.

Alcohol does not have these effects if the glycogen stores in the liver are normal. Under these circumstances the blood glucose level in the blood is maintained by the breakdown of liver glycogen, a process that is not influenced by alcohol. If a person becomes confused under these circumstances it is due simply to the pharmacological effects of the alcohol
!

http://academic.sun.ac.za/medphys/ketosis.htm


This might explain why you're getting away with eating a lot of protein and not gaining weight! To think that alcohol has saved you from being a fatass! Laugh
jl53563

adwred wrote:
jl53563 wrote:
Erasmus wrote:
If I recall, GNG is halted in the presence of alcohol.  

-E

According to this, I should be dead!  Well, at least brain dead.  Laugh

Quote:
DO NOT DRINK ALCOHOL IF YOU ARE KETOTIC!

Alcohol is a powerful inhibitor of gluconeogenesis. In fact, it forces part of the gluconeogenic metabolic process into reverse. This means that if all the glucose in the blood is being derived from gluconeogenesis then the consumption of alcohol will inevitably cause the blood glucose level to fall. Worse still, the alcohol also stops ketone body production, thus leaving the brain entirely without fuel.

A person who is ketotic is 100% reliant on gluconeogenesis to maintain adequate levels of glucose in the blood. If, under these circumstances alcohol is taken, the person will become disorientated and might lose consciousness, not just from the alcohol, but from low blood sugar. Needless to say, this could be very dangerous, and even fatal.

Alcohol does not have these effects if the glycogen stores in the liver are normal. Under these circumstances the blood glucose level in the blood is maintained by the breakdown of liver glycogen, a process that is not influenced by alcohol. If a person becomes confused under these circumstances it is due simply to the pharmacological effects of the alcohol
!

http://academic.sun.ac.za/medphys/ketosis.htm


This might explain why you're getting away with eating a lot of protein and not gaining weight! To think that alcohol has saved you from being a fatass! Laugh
Toast     Yes, but how is my brain still alive?   Laugh

Ya know, when I first started low carbing, I noticed that it didn't take nearly as much alcohol to "catch a buzz".  But now, 5 years later, my tolerance seems to be back where it was before LC.   Confused
jl53563

Quote:
This might explain why you're getting away with eating a lot of protein and not gaining weight! To think that alcohol has saved you from being a fatass! Laugh

Really, though, if I had say, 2 glasses of wine per night, I'd only have alcohol in my system for maybe 3-4 hours at most.  I wouldn't think it would make a huge difference in GNG.
adwred

Yeah, but you're likely having them with your biggest meal, correct?
jl53563

adwred wrote:
Yeah, but you're likely having them with your biggest meal, correct?

True, but I'd think most of the alcohol would be gone by the time any protein from my meal would be available for GNG.
jl53563

Also, GNG can come from glycerol and lactate, among other things.

http://www.med.unibs.it/~marchesi/gluconeo.html

Maybe some really smart person could go to that link and go to the part that covers Regulation of Gluconeogenesis, and translate it into English.  Laugh
adwred

Not necessarily. Alcohol isn't burned off that quickly. And GNG starts within 2-3 hours of eating, according to the way MY BG reacts. And if you had enough room in your muscles for the excess glucose, (which you did, since you're muscular and not consuming any carbs that might be stored as glycogen) chances are there wasn't a whole lot of excess glucose floating around in your body, anyway, especially after the wine with dinner. So your insulin was never triggered, meaning little to no fat storage.

However, a person who doesn't have the lean mass you have or isn't as active as you will experience a raised blood sugar from protein. In fact, so do you - for a period. It gets absorbed back into your muscles within an hour, but there is probably an initial small-ish rise. And if there is excess protein and the sugar doesn't have anywhere to go because you don't have enough de-saturated muscle, then the glucose just hangs around in your blood. The next time you eat too much protein, more builds up ... etc. until you have enough to trigger insulin, which will in turn will cause the glucose to be stored as fat. Sometimes even one meal's worth is enough to trigger insulin, depending on how much you eat, how de-saturated your muscles are, how much you exercise, how much fat you eat with your meal, etc.

You must see that ZC isn't working for some people and there must be some reason why. Otherwise, this forum would never have anyone arguing on it and everyone would be signed up for life and loving it. For me, the GNG thing makes total sense as to why ZC isn't necessarily a cure-all for obesity.
jl53563

It could be wrong, but I"ve always heard that alcohol is burnt off at the rate of about one "drink" per hour.  One drink being a glass of wine, 12 ounces of beer, or one ounce of hard liquor.  So based on that, 2 glasses of wine could be gone by the time GNG begins.  And that's assuming protein gets turned to glucose, which I'm not sure has been established.  

While there is much information stating that protein is converted to glucose, some very smart people, including Dr. Eades and Bear, say that GNG takes place only as needed.

Quote:
And if you had enough room in your muscles for the excess glucose, (which you did, since you're muscular and not consuming any carbs that might be stored as glycogen) chances are there wasn't a whole lot of excess glucose floating around in your body, anyway, especially after the wine with dinner.


But, if GNG did occur, and the glucose got stored as glycogen, this certainly would have shown up on the scale, especially with the water that goes along with it.
adwred

You're so right. I'm going to throw away my blood glucose monitor and go back on zero carb, despite the weight gain. How can I argue with 'smarts'? Laugh
jl53563

adwred wrote:
You're so right. I'm going to throw away my blood glucose monitor and go back on zero carb, despite the weight gain. How can I argue with 'smarts'? Laugh

I'm just saying intelligent people disagree about this.

GNG can come from any number of sources, not just protein.  How can we be certain that a rise in BG came from GNG from protein?

Any of you other people please feel free to join in here.  Laugh
jl53563

I found this.

Quote:
Does 50–60% of protein become glucose and enter the bloodstream in 3–4 hours?
Gannon and Nuttall4 report that in 1915, Janney calculated that ~3.5 g glucose could be produced for every gram of nitrogen excreted in the urine as the result of a beef protein meal. Beef protein is 16% nitrogen; thus, 1 g of nitrogen is excreted for every 6.25 g protein. Theoretically, then, 56% of ingested beef protein, by weight, can be converted to glucose. However, this was only a theoretical calculation. Gannon and Nuttall point out that, shortly after that calculation was reported, a number of researchers showed that the ingestion of protein by subjects with and without diabetes did not result in an increase in blood glucose lev els.


Quote:
As an example, as early as 1936, Conn and Newburgh5 reported no effect on blood glucose levels after a meal containing a large amount of protein in the form of lean beef. Fifteen subjects with diabetes and three control subjects were fed breakfasts of glucose or carbohydrate or protein foods calculated to yield equal amounts of glucose (2 g protein/kg compared to 1 g carbohydrate/kg). The blood glucose response after carbohydrate or glucose was as expected. However, there was no increase in blood glucose levels after the protein meal even though there was a consistent rise in blood urea nitrogen indicating protein utilization. The finding that protein did not raise blood glucose levels seems to have been lost or misinterpreted over the years.

More recently, data from Nuttall et al.6-9 also indicate that peripheral glucose concentration does not increase after protein ingestion in subjects with and without diabetes.

Nuttall et al.10 gave nine subjects with mild type 2 diabetes 50 g protein, 50 g glucose, or 50 g protein and 50 g glucose and determined the plasma glucose and insulin responses over the next 5 hours. The glucose response to glucose was as expected, but the glucose response to protein remained stable for 2 hours and then began to decline. When protein and glucose were combined, the peak response was similar to that of glucose alone. However, during the late postprandial period, the glucose response was reduced by 34%. The insulin responses for protein and glucose were similar, but when combined the insulin response was nearly doubled. The glucose decrease when protein and glucose were combined was attributed to the increased insulin response to the combination. See Figure 1.


Quote:
Gannon et al.11 reported on the glucose appearance rate over 8 hours following the ingestion of 50 g protein in the form of very lean beef compared to water in subjects with type 2 diabetes. After water alone, the plasma glucose concentration decreased from 6.7 mmol/l (120 mg/dl) to 5.4 mmol/l (98 mg/dl). After 50 g of protein, the glucose concentration at 1 hour increased by 0.1 mmol/L (3 mg/dl) and then decreased similarly to water. The ingested protein resulted in only ~2 g glucose being produced and released into the circulation. The fate of the remaining absorbed amino acids is unknown. Plasma insulin changed little after water, but after protein there was a threefold increase in insulin and a 50% increase in plasma glucagon.

This raises the question of why, if gluconeogenesis from protein occurs, does the glucose produced not appear in the general circulation? Several theories have been suggested. The first is that considerably less than the theoretical amount of glucose (50–60%) produced from protein actually is produced and enters the general circulation, and the small amount of glucose released is matched by a corresponding increase in glucose use, if adequate insulin is available.4 Another theory suggests that the process of gluconeogenesis from protein occurs during a 24-hour period, and the slowly and evenly produced glucose can be disposed of over a long period of time.5 It is also speculated that the insulin stimulated by dietary protein causes the glucose formed to be rapidly stored as glycogen in the liver and in skeletal muscles. This glucose can then be released when insulin levels are low or glucagon levels are elevated, and the body does not identify if the glucose is from protein or carbohydrate.


http://journal.diabetes.org/diabetesspectrum/00v13n3/pg132.htm
adwred

So one of the 'options' even describes exactly what I was suggesting is going on, for me:

Quote:
It is also speculated that the insulin stimulated by dietary protein causes the glucose formed to be rapidly stored as glycogen in the liver and in skeletal muscles. This glucose can then be released when insulin levels are low or glucagon levels are elevated, and the body does not identify if the glucose is from protein or carbohydrate.


So I suppose we agree.  Wink
jl53563

adwred wrote:
So one of the 'options' even describes exactly what I was suggesting is going on, for me:

Quote:
It is also speculated that the insulin stimulated by dietary protein causes the glucose formed to be rapidly stored as glycogen in the liver and in skeletal muscles. This glucose can then be released when insulin levels are low or glucagon levels are elevated, and the body does not identify if the glucose is from protein or carbohydrate.


So I suppose we agree.  Wink

That is one possibiltiy.  And as the auther says, it is speculation.
jl53563

Quote:
You must see that ZC isn't working for some people and there must be some reason why. Otherwise, this forum would never have anyone arguing on it and everyone would be signed up for life and loving it.

I think hormones can play a huge role.  People who have tried everything under the sun, and still can't lose fat.......or even gain when most other people lose......might have some underlying hormonal issues.  Women seem to have more hormonal issues than men.
adwred

I don't doubt it. But it doesn't mean that they're abnormal or that they should expect something to work and keep trying forever, when it doesn't. Hormonal 'problems' seem to be pretty common if low-carb message boards are any indication. For both men and women.

The fact is that people get accused of 'cheating' with carbs or binges when they're not losing weight when they are absolutely not cheating. Or they are accused of not trying hard enough or long enough at something when they have been following a diet to the letter. Zero-carb didn't work for me. I wanted it to work. Desperately. I preached it, even without having great results. I'm finally willing to see that.

Do I think a high carb diet is good? No. Do I think that means all dietary carbohydrate must be eliminated from the diet in order to be healthy or to attain a normal weight? No. Do I think ZC is not good for anyone? No. I think it obviously works great for some people, including you, Jeff.

If something is going to work for you, you should know it pretty soon and not have to stick it out for years before anything happens. Those people for whom any diet works perfectly are very lucky and, unfortunately, in the minority. And those who preach a WOE as being 'the' answer who have never even been significantly overweight, themselves ... well I think we all know what I think of them. Laugh
Erasmus

Jumping back in...

About Jeff's XS protein being converted to glycogen and stored as a reason why he didn't gain weight...

It is widely held that glycogen storage is accompanied by water retention to the tune of 4g water to 1g glycogen.  If he was storing glycogen his weight would have skyrocketed, at least until his tanks were full.

----

As to why blood glucose may increase after a ZC meal...  I suggest that it is POSSIBLE that the body is using a small amount of glycogen to pump up the energy level to handle the load of digestion.  This idea is just a guess.  

-E
adwred

Jeff is probably burning a lot of glycogen in a day, considering how active he is. His weight wouldn't skyrocket from 20 - 30 g or so of glucose from protein. People eat that much in carb in a day all the time and still consider themselves low-carb. It doesn't mean that protein isn't converted to glucose through GNG, beyond the needs of keeping a stable BG.
jl53563

adwred wrote:
Jeff is probably burning a lot of glycogen in a day, considering how active he is. His weight wouldn't skyrocket from 20 - 30 g or so of glucose from protein. People eat that much in carb in a day all the time and still consider themselves low-carb. It doesn't mean that protein isn't converted to glucose through GNG, beyond the needs of keeping a stable BG.

But during my experiment I was consuming an average of 270g of protein per day.  270 times 58% is 156g of glucose.  That is alot more than 20-30g.

Rember the Phinney study?  The cyclists were found to be burning virtually 100% fat.  Granted, they were not eating as much protein as I was, but if any of their protein were converted to glucose and then glycogen and then subsequently burned through exercise, it would have shown up in the tests.
adwred

jl53563 wrote:
adwred wrote:
Jeff is probably burning a lot of glycogen in a day, considering how active he is. His weight wouldn't skyrocket from 20 - 30 g or so of glucose from protein. People eat that much in carb in a day all the time and still consider themselves low-carb. It doesn't mean that protein isn't converted to glucose through GNG, beyond the needs of keeping a stable BG.

But during my experiment I was consuming an average of 270g of protein per day.  270 times 58% is 156g of glucose.  That is alot more than 20-30g.

Rember the Phinney study?  The cyclists were found to be burning virtually 100% fat.  Granted, they were not eating as much protein as I was, but if any of their protein were converted to glucose and then glycogen and then subsequently burned through exercise, it would have shown up in the tests.


Ok, 2 things. First, I think we're arguing 2 different things. My point is not the percentage of protein that is converted to glucose (which I think probably varies from person to person). I, myself, saw a rise in my own BG after eating protein. It varies on how much I've moved that day. It's not a consistent number. BG is a really slippery thing to measure as many things can affect it. What I'm personally arguing is not about the percentage, but that GNG from protein can produce more glucose than is necessary to keep BG stable and that the excess will get used by the brain and muscles or will be stored.

But let's pretend for a moment that you did produce 156 g glucose from protein ... we know you're still in a glucose-driven metabolism because you do not limit protein and you do not consistently and purposefully eat 80% of your calories from fat. So that means your brain needs 100 g glucose in a day. So there's 100 g of the glucose right there. And we also know that you're a muscular and active individual, which means that it's possible that your muscles could have easily used the remaining glucose. Since you were not part of the Phinney study and you admit to not eating exactly the way they did, you can't really assume that what was going on in their bodies is identical to what was going on in yours. We can't assume that your muscles were burning 0 g glucose, since muscles generally burn both glucose and fat. 56 g of glucose is only 224 calories. It's not unreasonable to assume that your metabolism can handle and burn up that many calories of glucose in a day and not store any of it. I know you were eating excess calories, but as we've determined, eating protein does use up a lot of calories just on its own. Again - not arguing that there isn't a metabolic advantage - just that excess protein can be converted into more glucose than is necessary to maintain a stable BG.

But once again - that is not really the point of my particular argument and I don't really want to get sucked up in an endless discussion about it. You don't believe GNG is the reason why some people can't lose weight or gain weight on ZC. I'm willing to believe it's possible and it definitely matches with my experience and what my BG is telling me. Kristi asked for our personal experiences with GNG and as one of the few people actually measuring BG, I provided what I believe to be pretty reliable and sensible personal information.
jl53563

Red, I really do agree with what you just said.  But really, it's all just speculation.  Even with you monitoring your BG, GNG can be generated from any number of different substrates, not just protein.
adwred

By 'I don't want to argue it forever', I mean that I've beaten my dead horse back to life and will stop now - not that others can't continue to discuss it, btw!
Erasmus

Seems to me an experiment is in order.   Evil

Perhaps you could, over the course of a few days, do an isocaloric meal of say 400kcal (or whatever you like) start day one at 0g P, then bump it up 20g/day until you are near 100% P.  I'm only talking about altering one of your meals a day and the sample size would be 1 so it would hardly be conclusive.  But it's a start.

-E
Avalon

I eat... nevermind  Roll Eyes

on second thought...

I eat, therefore I yam  Grin
Nicola

Charles opinion:

http://www.livinlowcarbdiscussion...howthread.php?tid=488&page=25

Nicola
jl53563

adwred wrote:
By 'I don't want to argue it forever', I mean that I've beaten my dead horse back to life and will stop now - not that others can't continue to discuss it, btw!

Same here.   Laugh   Actually, I wish others would discuss it.  I'd love to hear other's experiences and opinions.
Nicola

From the Raw Paleo Diet Forum:

An example to illustrate my point: you can find studies that measure levels of glycogen in muscles
of animals, such as:
http://jap.physiology.org/cgi/content/abstract/01121.2007v1
But the amount of glycogen in the muscles is so small, that it is an insignificant contribution to the diet
if the animal is killed and its muscles are eaten.
(i.e. muscle meat has almost zero carbs).

Nicola
jl53563

Nicola wrote:
Charles opinion:

http://www.livinlowcarbdiscussion...howthread.php?tid=488&page=25

Nicola

Interesting......thanks Nicola.
adwred

I did a mini experiment yesterday. Did a ZC day and with dinner had a glass (7 oz) of white wine. My BG didn't go up at the 3 hour mark - it went up from 81 to 93 at the 6 hour mark, instead. I wonder if alcohol just delays protein GNG and doesn't actually prevent it. Or maybe it had to do with a blood glucose cascade - not sure. It's so hard to know exactly what's going on there.
jl53563

Ain't that the truth!!   Laugh
adwred

My calories were a lot lower than usual (1400 vs 2000), so it could have been a cascade. God only knows.
Kristi31

Thanks to everyone for their input. This is very interesting indeed... Yup
Elli

I just got the parcel containing my new bloog glucose testing machine; last one was defective. I have lot less LM than Red or Jeff and lot more sedantary as well so it can be assumed that it's more likely to see effects of GNG if it happens. I'm working a lot this week that I can't possibly eat a hugh protein-based meal and keep checking my bg at the workplace. I'll do the experiment over the weekend and post the result.

By the way, should it be lean protein or fatty protein or doesn't matter as long as there's more than enough protein? I know that protein shakes and bars are more easily and quickly absorbed, but I would rather eat my food than to drink my food Embarassed Something like 40-50g in a sitting will show some result.
adwred

Lean would show quicker results, but don't eat just lean protein on account of an experiment. Your first priority should be your health. Yup
Elli

adwred wrote:
Lean would show quicker results, but don't eat just lean protein on account of an experiment. Your first priority should be your health. Yup



Thanks Red. I appreciate how you considered my health first.

Scientists make people eat all kinds of things and even put them on 90% carb diet that one or two lean protein meal shouldn't hurt me too much Laugh  A whole bag of shrimp or two huge fillets of white fish should work out to be about 50g of protein and I'll probably add about a tablespoon or two of butter for the sake of taste. I'll have to practice pricking myself before though.
Elli

Funny enough, dad just brought like two pounds of alaskan king crab. Would've been perfect for the experiment, however, don't really want to wake up two in the morning for the sake of measuring BG.

I just love king crabs. Too bad that they are almost always sold pre-cooked and also almost always too heavily salted. I have a cut in my finger right now and all that salty crab water didn't help much Sad
adwred

Had another ZC day. Ate dinner at 8:30 - 12 oz salmon (raw weight), which is about 73 g protein. That's all. Nothing to drink but mineral water. BG was 86 before eating. Now, 3 hours later it's 104. That's insulin territory. No ketones in my urine. Despite 3 days VLC. That's a GNG rate of roughly 29% of total protein (not 58%), but still way higher than my BG needs. Note I did not work out today, but I did yesterday.
jl53563

Quote:
That's a GNG rate of roughly 29% of total protein (not 58%), but still way higher than my BG needs. Note I did not work out today, but I did yesterday.

104 is way higher than normal?  What do you consider normal for you?  And you seem to be assuming that all of the GNG came from protein.  Many different substrates can be used for GNG.
adwred

Yes, 104 is higher than is necessary. Above 100, insulin is engaged. Why would the body naturally raise the BG to a point where insulin is likely to store the extra, especially when there is too much fat on the body? A person on a low carb shouldn't have a BG that goes above about 95 (and TG aren't being burned above 80). Plus, it was a lean meal - one mostly made up of protein. I'm not saying it came entirely from protein, but when I eat a meal of only fat, my BG does not increase AT ALL. In fact, it lowers. That's why I know this is about protein.
Nicola

http://www.second-opinions.co.uk/diabetics-should-eat-fat.html

Insulin is needed to digest protein.

Nicola
adwred

Totally agree with that article, Nicola, and it matches with my experience - although my BG does go up after eating protein. Not as much as carbs, of course, but it does indeed rise.

Quote:
Fat gives the best control
We are often told that eating fat increases glucose and insulin levels. Like most dietary advice today it is quite wrong as the graphs at Figures 1 and 2 demonstrate. Here you will see clearly that dietary fats do not raise either blood glucose or insulin. Not surprisingly, many studies have shown clearly that eating fat gives by far the best control over blood glucose and insulin levels.

To sum up: carbs raise both blood glucose and insulin; protein reduces glucose, but increases insulin; and only fat gives good control over both. Not surprisingly, currently recommended, 'healthy' carbohydrate-based diets for diabetics look to be totally inappropriate.
meatISawesome369

whats the least amount of protein one can get by on? I know you've mentioned this before Red but I've forgot. How much protein does a 6ft. 200 pound man need to mantain his muscle mass and get the rest of his energy from fat?

Stephen
adwred

Totally depends on your amount of LM and how much you move. It also depends on whether or not you want to have your muscles fueled by ketones, rather than glucose.
Avalon

yeah and stuff  Yup
jl53563

adwred wrote:
Yes, 104 is higher than is necessary. Above 100, insulin is engaged. Why would the body naturally raise the BG to a point where insulin is likely to store the extra, especially when there is too much fat on the body? A person on a low carb shouldn't have a BG that goes above about 95 (and TG aren't being burned above 80). Plus, it was a lean meal - one mostly made up of protein. I'm not saying it came entirely from protein, but when I eat a meal of only fat, my BG does not increase AT ALL. In fact, it lowers. That's why I know this is about protein.

On July 6, in a post replying to Ellie, Mary from the Sat Fat group states that a BG range of 85-110 is normal, except when the muscles are adapted to buring ketones, which yours would not be.

I suppose that could be wrong.
adwred

Yes, normal for someone on a carb-inclusive diet or protein-driven diet (which still includes carbs), who is likely to be engaging insulin regularly and daily. Mary doesn't recommend a ZC diet for anyone, remember? Even her keto-driven diet includes a minimum of 20-25 carbs a day for proper fatty acid metabolism.

Let me get this straight. You're arguing a ZC diet or VLC diet doesn't cause GNG-related glucose spikes and that it will correct obesity in the absence of 'hormonal problems' because insulin and glucose aren't available for fat storage, correct? I'm pretending that Mary doesn't exist right now and am testing ZC to see, solely, if GNG raises blood glucose more than a couple of points. Which it very clearly seems to.  

Or are you saying that GNG does raise BG beyond what is desired if not keto-adapted, but for some reason doesn't raise blood glucose beyond what is ideal when your muscles are adapted to ketones?? And if so, why?
jl53563

Believe it or not, I'm really not arguing anything.  I'm just trying to sort through lots of conflicting opinions and information.  

I still think what Mary said about normal BG applies.  She said it was normal for all scenarios other than when the muscles are adapted to ketones.

If I recall correctly, Bear said his BG was in the low 100's.
adwred

Well, whether or not one thinks it's ideal to have a BG of 104 is debatable. If GNG isn't an issue, then why is my BG rising at all? 83 is a perfectly 'normal' level. What would be the advantage of having GNG bring my BG up like that, so close to insulin-ville, but keep it in the 'normal' range?

I don't think it's ideal to have a BG where insulin is being secreted in order to store that glucose. My BG drops quickly after it gets above around 105 ... more quickly than it would just from having my brain burn it naturally. I suspect it's insulin being secreted and shuttling the glucose away. Do I know that for a fact? No ... but all signs point to fat ass.

My BG has gone above 110 from eating ZC - it's gone as high as 117 (and that's just since I've been monitoring it). I imagine it probably went higher than that, even, after particularly large protein meals. Maybe that's 'normal', too. But I don't think so. That glucose is being shuttled somewhere. And I sure as shit wasn't losing weight, like some people do. I went from 138 lbs to 155 over 20 months on ZC.
Erasmus

Over on the Bus, Lex (who seems to have gone missing) showed a stable 100 or so on his BG except for a dip down to the 80's just before meal time.

Perhaps it is your 80 that is the "unusual" figure and not the 100.

I'm just say'n, not really arguing the point, like Jeff, just trying to make sense of it all.   Happy

-E
Avalon

Red Wrote:
Quote:
Totally agree with that article, Nicola, and it matches with my experience - although my BG does go up after eating protein. Not as much as carbs, of course, but it does indeed rise.

Now I'm curious again. I know not that long ago I tested my blood after a bowl of Potato and cabbage soup and I think I was around 104 also. I can't find the post. But tonight I had mashed potatoes, egg yolk and veggies at around 4:45pm. I'm out of test strips but my neighbor has strips he gets from the VA and I think he'll let me test.

I don't know the whys and wherefores of all of this, but I am curious. I was planning on having Salmon tomorrow night, so I might test then also. I have to wait a while now- it's 2-3 hours right? What about 2.5hrs?

I know the wai team are big on tons of olive oil when eating fruits or drinking juice. Was there skin on the salmon? Makes me wonder if that would affect levels then... Like I have a feeling the yolk with the potatoes will have an affect.

Curiouser and curiouser.
Avalon

Ever heard of this?

http://www.nowfoods.com/?action=itemdetail&item_id=73515

Vinegar lowers blood sugar

Quote:
In the first study, 12 participants ate each of the following meals at one-week intervals: white wheat bread, bread with 18 grams of vinegar, bread with 23 grams of vinegar, and bread with 28 grams of vinegar (about 6 teaspoons). The meals were preceded by a blood draw to test fasting levels of glucose and insulin. Blood samples were also taken during the two hours following the meals to assess changes in blood sugar and insulin levels in response to the varying amounts of vinegar. The participants also rated their feeling of fullness or satisfaction (satiety) after a meal.

Blood sugar levels were significantly lower at 30 and 45 minutes and satiety was significantly greater at 30, 90, and 120 minutes after the meal with the highest amount of vinegar than after the plain bread meal. In general, the higher amount of vinegar in the meal, the greater the satiety and lower the levels of blood sugar and insulin.


Also I wonder what difference there might be if your ate you Salmon cold. Since cold food seems to have an affect. Just thinking out loud.
Avalon

I'm sorry, I think this is interesting no matter what you eat-
Quote:
Japanese researchers have found that vinegar can counteract the effect of white rice on blood sugar.

What happens if you do an Apple Cider Vinegar shot before a Salmon meal vs no Vinegar?

They're mostly talking about diabetes, but what happens on a ZC diet?

http://www.dlife.com/dLife/do/recipe/ShowRecipe?recipeId=6128

Quote:
Grilled Salmon with Rice Vinegar Splash
Submitted by: dlife
Source: dLife
Ingredients:
1 cup rice vinegar
3 cloves garlic, minced
3 shallots, finely minced
3 slices ginger, minced
1 1/2 pound salmon fillet
1 tablespoon olive oil
Parsley or cilantro sprigs (if desired)

Instructions:
1. Preheat broiler.
2. Whisk together vinegar, garlic, shallots, and ginger. Reserve.
3. Coat salmon fillet with olive oil on both sides. Place under broiler and cook 3 to 4 minutes on each side or until desired degree of doneness.
4. Drizzle the vinegar mixture over the cooked fillets. Sprinkle with parsley or cilantro, if using.

Drizzling a small amount of sauce over salmon at the very end really gives this dish an extra kick and doesn’t make the flavor of the salmon.


Would/could there be a difference using rice vinegar over an other vinegar? Eating the Salmon with or without it. And if this does work, would anyone bother?
adwred

Erasmus wrote:
Over on the Bus, Lex (who seems to have gone missing) showed a stable 100 or so on his BG except for a dip down to the 80's just before meal time.

Perhaps it is your 80 that is the "unusual" figure and not the 100.

I'm just say'n, not really arguing the point, like Jeff, just trying to make sense of it all.   Happy

-E


Lex's 'experiment' went much further once he joined Mary's group and I'm pretty sure he found his BG to be not normal or what he desired, IIRC. He wasn't keto-adapted, despite 2 years on his mostly raw meat regimen.
Avalon

Okay, last post  Laugh  Shock  I just read that lemon juice also lowers blood sugar...

... and I just read that Malt Vinegar is 0 Salicylates   Happy

http://www.amazon.com/Sarsons-Malt-Vinegar-10oz-Bottle/dp/B000Q3VYKQ

okay I'm done. I'm sorry. Okay, I'm going...
adwred

Avalon wrote:
Okay, last post  Laugh  Shock  I just read that lemon juice also lowers blood sugar...

... and I just read that Malt Vinegar is 0 Salicylates   Happy

http://www.amazon.com/Sarsons-Malt-Vinegar-10oz-Bottle/dp/B000Q3VYKQ

okay I'm done. I'm sorry. Okay, I'm going...


But it has GLUTEN! But rice vinegar's OK, I think. Or just plain white vinegar is not tooo too bad. In my experience. Thanks for the info, Ava.
Lauren

adwred wrote:

Lex's 'experiment' went much further once he joined Mary's group and I'm pretty sure he found his BG to be not normal or what he desired, IIRC. He wasn't keto-adapted, despite 2 years on his mostly raw meat regimen.


I'm bummed that I never got to read about his experiment. It's the only reason I joined the MB site but then he never came back to report. I seem to remember that the thrust of the experiment was to see how things would change if he upped the fat content of his diet. Adwred, do you remember any major conclusions from his experiment?
adwred

No, I'm not a MB member. But the discussion went on at the SatFatforhealth group. Not sure where that netted out before he vanished. He's never been a member here, I don't think.
Avalon

Okay last last post of the night.

DOHHH!!!  I forgot about Gluten!  Roll Eyes

I tested my blood 3 hours after dinner and I was 101. Couldn't post until now because neighbor and I watched 'Untraceable'. Except for the Yolk, I'd say it was a pretty carby meal Dunno

http://xetaprime.blogspot.com/200...u-breakfast-vegetarian-beans.html

I'm curious now to see what my readings might be after eating Salmon. I usually eat it alone anyways or with a little Mayo.

Could it be as with many things that different people react differently even when it comes to insulin response? If I take away the yolk will my numbers go up?  What if you dip raw  or cooked Salmon in Yolk or, Hollandaise Sauce? Hmmm that sounds good  Yup
adwred

Oh, my salmon did have skin, btw. Yup Centre was cooked to medium doneness.
Avalon

Do you think insulin my be different for cooked versus Sashimi? I know AV thinks eating fish raw helps when it comes to mercury poisoning  Shock  hell if I know. You know?

Gluten free malt Vinegar Smile

http://www.britishdelights.com/prod_s4.htm
Carnation

Quote:
Gluten free malt Vinegar



Ava,  Big Hug
Nicola

Lex left the MB; some trouble with the owner...

He is not so happy about sticking to a plan like Mary and this may be why he is not posting...

He is on the Raw Paleo Diet Forum; I should think he will post when he has things worked out again.

Nicola
Lauren

Thanks Nicola. I was not happy with MB either and don't even check there anymore. It seems to be more of a dating service at this point.

Please let me know if Lex starts posting about his experiment. I really appreciate his scientific approach.
Lauren

http://www.rawpaleoforum.com/journals/lex's-journal/

I just found this link to Lex's protein/fat experiment.

adwred, you've probably already seen this but his findings support your experience of excess protein causing insulin spikes and fat storage.
Avalon

I love experiments! Very interesting read. Makes me want to seriously get some data from my end  Shock  Laugh  I mean, get the poop so to speak... ehh scoop I mean  Roll Eyes  DOHHH!!!

heh heh

Big Hug back at ya Carni!
jl53563

Red, your 12 oz salmon meal from a couple of days ago got me thinking about something.  This would also apply to Lex's experiment.

The idea of excess protein converting to glucose does not seem unreasonable to me.  It's the only way it could be stored for later use.  The question then becomes, what constitutes "excess protein"?  

Your salmon contained about 73g of protein and was eaten all in one meal.  While 73g of protein is probably a reasonable amount for you, perhaps the fact that it was eaten all at once was perceived by the body as being "excess".  Maybe this is more than the body can handle in a short period of time, so the "excess" would convert to glucose and be stored either as glycogen or converted to fat and stored as such.

It would be interesting to see what would happen if you took that same amount of salmon and ate it in 3 or 4 well spaced meals thoughout the day.

Lex also consumed his protein all in one meal.

The "experts" consider a serving of meat to be 3 ounces.  Maybe for once they are on to something.  Laugh
adwred

Oh, it definetly doesn't rise as much if I eat it space out throughout the day. Although, if I eat more than a certain amount in a day (for me, it's about 120 - 130 g), regardless of how I space it out, my BG will creep up over the course of a few days and won't come down until I de-saturate my muscles with exercise. But on ZC, unless you don't mind eating tiny portions frequently throughout the day with lots of fat, you kind of have little choice but to eat large servings of protein, since you're not eating anything else (yes, there's fat, but fat, as you know takes up very little space, volume-wise and fat doesn't do a ton for me satiety-wise). I see people eating 1-lb steaks all the time on this board. I used to eat a 12-oz portion of meat all the time on ZC. And others on ZC report losing fat or never gaining, while eating huge portions of meat, shockingly.

My point is that ZC isn't a guarantee of having a low and steady BG and avoiding fat storage without additional tweaking. See, now we're understanding each other! Yup
Nicola

Lex still eats one meal a day (he didn't like having to eat twice or more; I don't like eating more because eating would put me off (work, sport...).

I wonder why some humans are healthy on meat and fat...

http://tinyurl.com/42nqhw

Nicola
Avalon

ohm... ohm... ohm...

Dunno
jl53563

adwred wrote:
Oh, it definetly doesn't rise as much if I eat it space out throughout the day. Although, if I eat more than a certain amount in a day (for me, it's about 120 - 130 g), regardless of how I space it out, my BG will creep up over the course of a few days and won't come down until I de-saturate my muscles with exercise. But on ZC, unless you don't mind eating tiny portions frequently throughout the day with lots of fat, you kind of have little choice but to eat large servings of protein, since you're not eating anything else (yes, there's fat, but fat, as you know takes up very little space, volume-wise and fat doesn't do a ton for me satiety-wise). I see people eating 1-lb steaks all the time on this board. I used to eat a 12-oz portion of meat all the time on ZC. And others on ZC report losing fat or never gaining, while eating huge portions of meat, shockingly.

My point is that ZC isn't a guarantee of having a low and steady BG and avoiding fat storage without additional tweaking. See, now we're understanding each other! Yup

Yes, I'm one of those people who can eat a pound or more of meat for a meal with no problem.  

Maybe your body is more sensitive to protein than others?  I suppose there could be alot of personal variation.  After all, some people can eat tons of carbs and other crap and never gain a pound.  Maybe it's the same with protein.
adwred

Yup

Now, to find out what I SHOULD be eating ...
jl53563

Quote:
I wonder why some humans are healthy on meat and fat...

Perhaps because that is what our bodies were designed for?  Wink
adwred

K, one more post. Today, I fast until 2 pm. Then I had breakfast, consisting of 55 g protein and 20 g fat. Trace carbs. BG was 82. No BG rise at all, until just now, 2-1/2 hours later. Right now, I'm sitting at 100. And I'm hungry again!
Elli

Out of curiosity, do you think Bear was ever properly keto-adapted as in his muscles are using ketones as the primary fuel?

Quote:
The normal range for fasting BG is taken to be the range of 70 to 115. BG has to be taken while fasting, I fasted for periods of from 8 hours to as long as 24 hours before being tested, and trust me there is NO WAY that insulin is 'trying to lower' my BG. 99 is my value, it has never varied, and is what my body has as its standard. My pancreas is 'set' to that value (to use your term), and that is why it is dead stable. To make a categorical statement that every human's internal subjective clock, fat percentage and/or glucose are invariably identical in all people is to bugger belief- and that is what such a contention is, belief- not science. So please give it away. I live in the real world, not the fantasy world of today's totally suspect 'science documents', with results created and produced to fit the research-grant's money provider.


This is a quotation from bear, and his fasting BG is close to 100. I'm not saying this is necessarily bad, but looks quite higher than Mary's which stays around 70-80. I know Bear ate quite a lot of protein, so maybe he didn't necessarily utilized ketone all the time.

How about you Jeff? I'm curious.
Avalon

I just heard he's switched to ethanol for fuel  Yup
jl53563

Avalon wrote:
I just heard he's switched to ethanol for fuel  Yup
Laugh  Laugh  Laugh   Well, my body does burn a bit of alchol from time to time!  Toast

Elli, I have never taken a BG reading, so I have no idea about that.

I have been testing for ketones, though.  I always test either negative, or just a trace.  The only time this varies is after exercise.

So, I'm either keto-adapted, or not producing ketones, I guess.

I have a question, which I should probably ask Mary, but I'm a little afraid.  Laugh   How can the muscles use ketones as the primary fuel?  Ketones are a bi-product of fat burning.  You have to first burn the fat in order to get the ketones.  Since ketones contain either 4 or 5 calories per gram(I've read both numbers), it seems to me that at most, it would be about a 50-50 split between fat and ketones.  Any thoughts?

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