Researchers from around the world believe that the blood group is responsible for the formation of personality and is the key to the normal functioning of the immune system. At the beginning of the last century, all over the world, blood groups were divided into A, B, AB and 0. It is believed that people with blood group I (0) are very confident in themselves and are not afraid to take risks. At the same time, they can be conceited and arrogant. For good health, "first-group students" need to provide their bodies with protein, iron, zinc and vitamin B. It will be useful for these people to include red meat in their diet, writes Nation-news.ru. Second-grade students (A) are sensitive, responsible and can be very patient, but they are a little secretive and stubborn. Experts recommend that people with the second blood group eat more vegetables and vegetable oils. But it is better for them to refuse legumes, since these products will interfere with digestion. People with group III (B) are optimists and creative individuals. They should not give up meat for the normal functioning of the body. Researchers recommend that such people reduce their intake of corn, wheat and peanuts, which will slow down the body's metabolism. Holders of the IV blood group (AB) are rational and incredibly charming. The most suitable foods for them are seafood, green vegetables, tofu and milk. Overweight people with the fourth blood group need to give up buckwheat, legumes, corn and wheat. Note that the article is for informational purposes only and does not replace expert advice. See also: Nutritionist spoke about the dangers of habitual healthy products Freshness and beauty: these 7 vitamins are necessary for the skin Doctors told how much water a day you need to drink for longevity Natalya Ivanova. Photo: pixabay.com.