Proteins do just about *everything* in the human body. Collagen is the major component of our bodies-and it is a protein. Hormones are usually proteins.
The AHA group focused on decreasing their daily calorie intake in order to lose weight, and they were provided with goals to limit saturated fat. The fiber group was simply asked to eat more foods rich in fiber, such as fruits, vegetables and whole grains, to reach a quota of at least 30 grams of fiber per day.
Fiber helps you lose weight, and here's why. It fills your belly, it acts like a sponge, it's slower to be digested and absorbed, so it makes you feel full, says WebMD Weight Loss Clinic Dietitian Kathleen Zelman, MPH, RD, LD.