This article delves into the "Bad v. Good carbs" that pack on the pounds and the good fat that delays hunger pangs and are heart friendly.
http://well.blogs.nytimes.com/2015/10/19/the-fats-you-dont-need-to-fear-and-the-carbs-that-you-do/?smprod=nytcore-iphone&smid=nytcore-iphone-share
High-glycemic foods are a particular problem for people trying to control their weight. The amount of insulin released to lower blood glucose can overshoot the mark and result in a rapid return of hunger. A low-glycemic food, on the other hand, has no such effect. And those that are rich in wholesome fats, like peanuts or avocado, can actually delay the return of hunger, though the calories can add up quickly if consumed to excess.