Proteins[En2][En3], or protids, are molecules of carbon, hydrogen, nitrogen and oxygen. Enzymes, many hormones and antibodies are protein substances. Unlike carbohydrates, they cannot be stored as supply, therefore it is necessary to guarantee to the organism a daily assumption.

They are important for muscles and bones building; they convey substances such as medicines.

Where they can be found

In meat and fish, in milk and dairy products (cheese and yoghurt), in eggs and legumes.

What happens in case of shortage

Protein shortage steals to the organism a useful tool for repairing and building muscle fibres: muscles lose tone and firmness.

What happens in case of excess

Protein excess (over 25-30% for long periods) leads to fat store (exceeding proteins are accumulated only as fat) and to toxic substances such as uric acids and ammonia, that kidneys have to expel with urine, thus losing water and precious salts.