Why is protein important? Proteins are like carbohydrates and fats an nutrient. It has a beneficial effect on weight control because it contains many nutrients. This gives you a full feeling in your stomach for a long time, so that a diet can easily be sustained. In addition, protein helps build and repair muscles, it is good for hair and skin and provides essential amino acids for a number of chemical processes of the body. In addition, proteins help the blood to spread oxygen through the...