Hype about protein diet: weight loss method put to the test. Protein doesn't just help strength athletes, but is used as a building material, as the health magazine Fit For Fun knows.

Many positive effects with more nutritional focus on protein - calories still have to be counted. No miracle diet: There are greater risks than the yo-yo effect of satiety hormones. As soon as you fall back into old eating patterns, the weight comes back very quickly to consume more calories, experts warn.