So here is the issue with “too much protein’ it is a decades old myth which then really took off when Lyle wrote his book in 1998ish? He mentioned that “up to 58% of protein can convert to glucose via GNG”, people panicked and did not READ carefully and they assumed hat 58% of ALL protein consumed does this. I am even guilty of that but still consumed pretty high protein back in the 90s on keto. The fact is you can’t alter the rate of GNG as there is zero evidence/studies in human that show it is supply driven.
****THE MAIN reason this keeps being spread is because of MLMrs and charlatans selling products based off this absurd nonsense, it is the Amway of the 21st century. These silly keto products with 75/25/5 ratios is nonsense but God forbid people knew the truth, these companies can’t sell their stuff any more. These chubby keto zealots pushing adding fat to everything would no longer make any money. They like to push this fear protein and gorge on fat because it makes sense to them and they like stuffing their faces with fat. Protein is boring, fat is not.
Do I know for a FACT that VERY well known keto gurus know there is no fear of protein… YES… I spoke at a keto seminar last year in Vegas and then in Florida and some of them were there (everyone knows these keto people)…we talked privately…um yeah… they make money off this stupidly and they wanted me on board to push their products as long as I:
A – removed any mention on all my social media accounts of too much protein not kicking you out of ketosis.
B – push the bull shit myth they and others do.
I declined…
I think people fear the truth, no joke. When I started keto in 1995 all we did was use ketostix and we always remembered the ol "58% of protein/aminos converts to glucose" but what we did not know was that meant "58% of aminos CAN convert, not will always convert' so that is where I believe all this myth/fear started. I never feared protein, even in the 90's I would eat a lot or protein and then last year I said why not test what I know is true and I did and I was right.
I am in keto facebook groups with a combined 150,000+ members and a ton of us have tested and came to the same conclusion = zero issues with ketosis.
So, about 58% of “excess protein” get converted and who know what is excess? Also this is a good thing when eating low/no carbs as our brain and other bodily functions need the glucose. So this conversion is needed and the body utilizes the glucose, it doesn’t kick you out of ketosis or render your ketogenic diet useless. You are still keto. Now what does 1000gms of protein do? not sure and that is too many calories for me to desire to find out nor care.
As stated above I “blame” my boy Lyle McDonald for this 58% number as that is where most people started to learn about it, in his book. I and Lyle did keto together and shared experiences with many others in the very old Low-Carb list-serve before he wrote his book. I was doing Keto ala BodyOpus under Dan Duchaine (he was helpful in my testing of his keto version) and then Lyle took it to another level and wrote that good albeit somewhat outdated book.
This myth is just like starvation mode myth or small meals “stoke the metabolic flame”, protein is bad for kidneys, creatine will kill you etc etc… some people refuse to research and just accept what they hear… they are simple lazy people.
So lets talk about Gluconeogenesis and regarding excess protein -> glucose
The Ketogenic Diet for Health: If You Eat Excess Protein, Does It Turn Into Excess Glucose?
The body mostly turns protein into glucose based on need:
Dietary protein does not negatively impact blood glucose control. | The poor, misunderstood calorie
It is hard to eat enough excess protein to remove you from ketosis entirely, often it doesn't change anything:
Dietary protein does not negatively impact blood glucose control. | The poor, misunderstood calorie
And of course, the genius, Peter, says the same, aminos CAN provide oxalaoacetate to reduce ketogenesis, but the question is, does this happen in the liver?
Hyperlipid: Ketosis and Protein
I happily accept any other articles that state the contrary of what is being proposed here. However, the evidence and biochemistry stands to reason: it is quite difficult to over consume protein to the point of being out of ketosis.
http://youtu.be/4JE-wdA3PHw
http://examine.com/faq/how-much-protein-can-i-eat-in-one-sitting/
https://youtu.be/mjmV8BlsJTQ
http://bayesianbodybuilding.com/the-myth-of-1glb-optimal-protein-intake-for-bodybuilders/
Finally...The human evidence on reasonable variations in protein consumption disagree. The rate of GNG is relatively fixed and is NOT affected by supply.
There is not a single study in humans (and none in rats/frogs/pigs/et that I'm aware of) which indicate too much protein does anything but spike blood glucose moderately. The only study I've seen that tested both insulin and glucagon indicates that the I/G ratio is preserved, meaning the BG spike does not "kick you out of ketosis."
So as I mentioned I ran a little experiment for 5-6 days… Higher than normal protein consumption. 100-150 grams of whey PER MEAL.... Did blood ketone tests over 50 times. (no joke) Zero issues on my blood ketone levels and even blood glucose. I wish more people would do this because GNG is like the Loch Ness monster of the keto world