According to the German Society that the lack of protein in the body can be induced by some signs, including the decline of muscle mass, hair loss, swelling of the arms and legs, and the persistent feeling of hunger, and frequent incidence of diseases.
Protein is of great importance to health. It is an important source of energy, provides vital amino acids and helps regenerate cells and tissues.
She added that one needs protein daily in the amount of 0.8 to 2 grams per kilogram of weight, and therefore needs a person weighing 60 kg to 120 grams of protein per day.
Food sources of protein are divided into animals such as meat, eggs and dairy products, and plant-like legumes such as lentils.