In his study on 75 obese people with metabolic syndrome, one group was given protein, carbohydrate and fat in the proportion of 15:65:20 while the other group 30:50:20.
After three months, the second group with greater proportion of protein had lost twice as much weight as the first.
There are reasons why protein is more effective in losing weight than carbohydrate or fat. More protein (4 kcal/g) is spent in the formation of energy per calorie than carbohydrate (4 kcal/g) and fat (9 kcal/g) but the body stores less protein.
Moreover, protein reduces hunger because it sends a signal to stop eating to the brain faster than other nutrients. < 헬스코리아뉴스/Healthkorea News>