[glymor]

What little I've read on obesity research seems to require that both excess sugar and fat are consumed to overcome homeostasis.

Sugars can ignore homeostatic regulation for hedonistic reasons and fats don't have the same day to day correction that carbohydrates do.

So the part that might be working in your diet might be the no-sugar part of no-carb.

Overall it's quite amazing that many people can consume something like a million calories per a year and end up within 0.5kg (3500 calories) of their starting point.