I think Zach's question is a legitimate one, and I have wondered about it myself, i.e., whether "fat adaptation" refers to an actual physiological change (where the body starts burning fat in preference to glucose). I have wondered whether there is a known scientific basis to this idea of fat adaptation. I think this is a legitimate topic of discussion and don't understand why some people are throwing a hissy fit.
Now, I don't know the answer to the above questions. What I do know is that, as a runner, when I first went primal and reduced my carb intake to less than 100 g per day (I was eating close to 100g per day in the beginning--which isn't even that low in the grand scheme of things but seemed low at the time), running became really REALLY hard. And it was weird because it felt like my cardio conditioning had gone to hell, i.e., I was getting winded at an intensity that normally isn't hard for me. One would think that if my muscles aren't used to not have more glycogen around or whatever, that I would experience some kind of increased muscle fatigue, but that's not what happened. Cardio conditioning went to hell instead. (But would return to normal upon increased carb consumption.) Anyway, this went on for a very long time--it took me a long time to adapt, so to speak, because I wasn't always super strict. But eventually, one day, all of a sudden, I realized that running on very little carbs wasn't hard anymore. I don't know if that's fat adaptation, but it's definitely some kind of adaptation. I'm certainly not losing any body fat despite eating at a caloric deficit so if it is fat adaptation, then it's pretty lame.
Call it whatever you want, but I comfortably did my first IF yesterday (17.5hrs) without a crash. That isn't something I could do before going Primal. Something has changed for me that's for sure. I'm ok with calling it fat-adapted
"It's a great life, if you don't weaken.". John Buchan
Ok so it looks like the answer was what i thought all along, that these are just catch phrases to hype the diet. No real scientific backing. People seem to just like saying it to make themselves feel good.
[QUOTE=Zach;1080004]You are such a angry little man. Eat some carbs, itll put a smile on your face and some pump in your muscles!
Ok so it looks like the answer was what i thought all along, that these are just catch phrases to hype the diet. No real scientific backing. People seem to just like saying it to make themselves feel good.[/QUOTET]
Typical response of the numpty crowd.
Eating primal is not a diet, it is a way of life.
Don't forget to play!
A few months ago I was explaining the sugar burning vs fat burning thing to someone when I realised it sounded like quackery...
Then I started looking into metabolism and read that due to beta oxidation we continuously burn fats, even when using sugar as a main source of fuel. Gorbag said it all already.
Over the last two months I transitioned back to moderate / high carb, and guess what? No hypoglycemia, and I can fast! What gives?
The elimination of gluten is the only constant in my case, so I'm going to blame everything on that
"I think the basic anti-aging diet is also the best diet for prevention and treatment of diabetes, scleroderma, and the various "connective tissue diseases." This would emphasize high protein, low unsaturated fats, low iron, and high antioxidant consumption, with a moderate or low starch consumption.
In practice, this means that a major part of the diet should be milk, cheese, eggs, shellfish, fruits and coconut oil, with vitamin E and salt as the safest supplements."
- Ray Peat