The composition of vegetable crops Vegetable crops contain almost all nutrients necessary for the human body. The main components of food are proteins, fats, carbohydrates, water, mineral salts and vitamins. Vegetables are a generous source of a complex of vitamins, easily digestible carbohydrates, mineral salts and other substances. Squirrels. The word "protein" in Greek means "first, important", i.e. protein is the most important carrier of life. It consists of: carbon, oxygen, hydrogen, ni...