There was a documentary where identical twins did a health challenge or a month. One ate only carbs and the other only fat/protein. Guess which had blood sugar spikes at the end of the challenge... the one eating fat/protein.
But if you continue to eat low-carb, you don't end up with blood sugar spikes.
I know I'm much better off on a low-carb diet than I ever have been, and my blood glucose level is much more stable. My brain works better, and I've lost a lot of weight. But I can't pig out on sweets or I get a hangover. It's a tradeoff.
On the plus side, the sugar-loving bacteria in my gut have probably mostly died off, since I no longer get sugar cravings like I used to. So I don't feel like pigging out on sugar. Works for me.
> Guess which had blood sugar spikes at the end of the challenge... the one eating fat/protein.
I believe this is thoroughly discussed in The Four Hour Body, amongst other things. It's the reason you eat beans and other "slow carbs" on that diet, since breaking down fat without any carbs will spike your sugar.
