This is the best article I've read on dieting: http://blogs.scientificamerican.com/guest-blog/2012/08/27/the-hidden-truths-about-calories/ http://blogs.scienti

This is the best article I've read on dieting: http://blogs.scientificamerican.com/guest-blog/2012/08/27/the-hidden-truths-about-calories/ http://blogs.scientificamerican.com/guest-blog/2012/08/27/th... IMO, if you eat fewer calories than you expend, you'll lose weight. BUT I do think that you can eat more calories than you expend and still lose weight. Likewise, the amount of weight one loses/gains eating the same number of calories and expending the same number is variable based on the actual person and food. That is to say some people/diets are more calorie efficient (which in our day and age is generally not a good thing). Additionally, some foods/behaviors are probably more likely to make people want to eat more/less. We can't cheat thermodynamics, but there are other some things we can do to make us eat less and be less efficient.