I knew this would create a lot of comments. I know there is work on trying to understand what a calorie really is.. is it used the same in our body if it is a carb, as a calorie of fat?

One man who is doing several crazy(not scientific but fascinating) experiments in this is Sam Feltham

This is his first experiment.
http://live.smashthefat.com/the-21-...orie-challenge/

Ketosis is another cunundrum.... long term - in or out? That is the question of my day, although I am leaning to long term in at about 50 netgrams a day.