I find it troubling that when you see the name "Ray Peat" your brain immediately shuts off. I also find it troubling you think Danny Roddy makes his money off an ebook very few people know of. Most troubling at all, you gave it a review without reading it. I have not read it, I do not intend to, and therefore I won't review it.
Originally Posted by Paleobird
Gluconeogenesis uses cortisol to break amino acids down into the glucose your brain requires, which is substantial even in full ketosis. Low carbohydrate diets as a rule elevate stress hormones because stress hormones are what break down your lean tissues. Since fat isn't converted into glucose and your body has to break down muscle, connective tissue and organs to do so, you can make your call whether or not you call that a more "stressful" environment. Personally, I'd consider myself more stressed if I have to break down my organs for sugars instead of simply eating a potato or an apple.
There is no such thing as a "sugar burner" or a "fat burner." THAT is a lie Mark Sisson uses to sell The Primal Blueprint, which he (unlike Danny Roddy) makes a complete living off of. You burn sugar and fat at the same time all the time. At no point does your body not burn fat and sugar. If at any point you are not burning fat, you are dead. The reason why people on the SAD generally feel awful if they don't regularly consume carbohydrate is because their mitochondria do not function properly and have low oxidative potential. They feel better on carbs than fats because carbohydrate provides more ATP per calorie than fat does. Glucose is a vastly superior fuel than fats - it is much more efficient - so when you take someone who can't metabolize energy efficiently (ironically, mostly due to too much polyunsaturated fats in their diet), they function much better on carbs since they get more bang for their buck per calorie.
Now, when you take someone healthy and give them carbs - like an athlete - the ceiling is unlimited by comparison. As a person who sits on his butt 10 hours a day 5 days a week, works out for 4 lousy 1 hour sessions a week and stands a whopping 5'7" tall at a massive 143 lbs, I can tell you first hand the huge benefit I've felt by eating a more "Ray Peat" style diet - more carbs than fats, fats from red meats, eggs, coconut and dairy, very little nuts, no grains and I'm much more relaxed on sugar intake. I don't even buy coconut sugar anymore. Regular old brown sugar is A-OK with me in modest, non-hypercaloric quantities. Low carbohydrate dieting, even in maintenance and hypercaloric quantities, did not provide nearly the amount of energy or body heat as consuming a good amount of carbs. I had a 42 bpm resting heart rate before bed and I was always cold. Never again will I fall for the snake oil that is low carbohydrate dieting.
Last edited by ChocoTaco369; 07-16-2013 at 12:24 PM.
Don't put your trust in anyone on this forum, including me. You are the key to your own success.