Ah, ok. I think I figured out where my confusion was at regarding the catabolic pathways from both gluconeogenic and ketogenic amino acids. The correction looks something like [Keto-Acids[Ketone bodies]]
While most catabolic products are categorically and chemically ketones, the list of ketone bodies mostly falls within the list of Keto-Acids. All of which can get passed to TCA at some point, which in turn can feed into gluconeogenesis if the reaction pathway energy is favorable.
While several people refer to gluconeogenesis, to the best of my knowledge we _can_ make glucose from protein, but rarely do in practice. I have yet to see anyone convincingly show that we do.
This is so so true but so many people don’t believe this is possible. I wish there was a way to formally study this. Once my children are out of the house, I’m going 0 carb. I’m already pretty close to carnivore.
A few parts of your body can't operate on ketones, so there's a backup mechanism to produce glucose from protein (from muscle breakdown, if necessary) called gluconeogenesis.
However, There's no evidence I've see that gluconeogenesis can kick you out of ketosis. As far as I know, gluconeogensis is demand-driven, not supply-driven, so there won't be any extra glucose running around for your ketone-consuming cells to use, regardless of your protein intake.
"The production of glucose from glucogenic amino acids involves these amino acids being converted to alpha keto acids and then to glucose, with both processes occurring in the liver. This mechanism predominates during catabolysis, rising as fasting and starvation increase in severity."
The body can use protein to make glucose, it only will switch into that mode under low carbohydrate conditions like fasting or very low carb diets. It's less energy efficient of a pathway though.
Could you elaborate on that logic?