Why does eating monotonous food lead to disease?

Eating the same food can cause a severe deficiency of vitamins and minerals. Each of the products contains its own substances that are necessary for a person. For example, the complete absence of meat in the diet leads to a lack of iron, which is mainly found in meat products. A lack of iron will lead to anemia – a low hemoglobin content in the blood. Lack of fresh vegetables and fruits in food leads to a deficiency of vitamin C. Lack of this vitamin is accompanied by a deterioration in immunity, deterioration of the state of blood vessels.