I felt better at .6 to .8g per lb while in keto ate 1g of fat per 1lb of LBM and gained strength while POWERLIFTING my totals are lb for lb very good and I felt great had energy all day and was making progress in every form. Continue on though as there is no point to the discussion on this especially with you.
@Docd187123 as for your point if I'm eating 160g of protien 175g fats <20g carbs and losing weight while not feeling hungry or fatigued I believe it works. Is it ideal for most no not really but it's how I like to eat and works for me so I wouldn't say impossible by any feat of the imagination.
I think you're missing the point. It's not that what you're doing CANT work, it's just that it's likely not the best way to go about it.
What RippedZilla is trying to point out is that even though you're in ketosis, the primary fuel for all glycolotic activities (which include lifting) is glucose. It doesn't matter that your in ketosis and the body has shifted to using ketones for energy bc that's for anaerobic metabolism which is low intensity activity. High intensity activity still requires glucose for glycolotic metabolism.
Carbs are 100% anti-ketogenic bc they get converted to glucose. Proteins are roughly 58% anti-ketogenic bc some amino acids can be converted to glucose. Fats are about 10% anti-ketogenic bc only the glycerol portion of triglycerides can be converted to glucose and this is why they make up the abundance of your calories on a ketogenic diet.
Now the issue comes down to your brain can on,y use glucose for energy. On a carb rich diet this is no problem bc you have sufficient carbs to power the brain and your glycolotic activity. On a keto diet, bc your carbs are so low, the liver is forced to produce glucose from stored liver glycogen but your brain requires roughly 100g of glucose a day to function and the liver only holds about 100-120g of glucose so it's basically only a day's supply. Your muscle glycogen is about another 500g of glucose but this cannot be used to fuel the brain bc the enzyme required to convert glycogen, glucose-6-phosphatase, isn't found in your muscles. So the muscle glycogen gets used to perform your glycolotic activities. But again, on a ketogenic diet your so low on carbs that this is only a temporary supply.
Now imagine taking in only 0.6g/lb protein. This is below the generally recommended amount for active/competitive gym-goers, especially a powerlifter. So you're either just barely getting enough protein or not getting enough right off the bat. Now imagine all the glycolotic activities you're doing i.e. lifting, high intensity conditioning work, prowler drags, etc etc. where does all the glucose needed to fuel this activity come from? Remember, you've already depleted your liver glycogen just to power your brain (liver glycogen balance is also a critical component to catabolism) as well as your muscle glycogen. Where else can you get glucose from? Can't be carbs bc you're at less than 50g/day and that's just not enough. The only remaining sources are the glycerol from fats and stored amino acids
Fats would be favored through beta oxidation reaction and then the Kreb's Cycle but again, only about 10% of them can be converted to sugar so assume about 200g of fat and 10% of that is 20g of fats that can be used to make glucose. Still not enough.
The next source of glucose is stored amino acids (muscle/catabolism) or the amino acids from your diet (protein). Amino acids can be converted to glucose through deamination to remove the NH3 molecule to create ammonia. The liver takes the ammonia and makes urea out of it which is a keto acid. This then can be converted to glucose via gluconeogenesis. Remember now, your protein intake is already too low or barely enough to get by and that's without tapping into your stored amino acids or dietary amino acids but you've just created an environment that's going to need to do exactly that. If you use dietary amino acids your body won't have enough to rebuild damaged muscle tissue and grow more. If you tap into stored amino acids (muscle tissue) then you won't have enough dietary amino acids to replace all of hats lost bc the intake is so low.
This whole issue can be swept aside simply by increasing protein intake to the minimum requirements of the body.
Sorry for the novel but I love topics like these
