"A person's blood type determines the type of food their body needs." This was proposed by Dr. Peter D'Adamo, a famous American "naturopathic" expert.
In his book "Eat Right 4 Your Type," Dr. D'Adamo points out that some people, in order to lose weight, carefully eat less, yet their weight still increases. The reason is that the effect of food on the human body varies by blood type. In other words, a person's blood type determines how their body utilizes different foods. Dr. D'Adamo's research conclusions are as follows:
Type O blood is a very ancient blood type in anthropology. They are very well-adapted to high-protein foods but have a very poor tolerance for grains. Therefore, they digest lean meats and vegetables very well. People with Type O blood can control their weight by eating lean meats, animal liver, seafood, and green leafy vegetables. Trying to lose weight by relying on grains, beans, cabbage, and potatoes will be futile. The majority of Eskimos are Type O blood. They have a meat-based diet with very little vegetables and fruits, but they rarely suffer from cardiovascular diseases and cancer.
Type A blood is the second most common blood type. The ancestors of people with Type A blood were the first to engage in farming and are quite adapted to a vegetarian-based diet. Tofu, soybeans, and vegetables are very suitable for them. Certain plant proteins, such as soy protein, are their best health foods and can help prevent cardiovascular diseases and cancer when consumed regularly.
Compared to Type O and Type A, Type B is a more recently emerged blood type in anthropology. These people were the earliest nomads who adapted to climate and other changes. Therefore, people with this blood type are extremely well-adapted to both meat and vegetables, and dairy products are also very useful. However, some foods such as chicken, corn, tomatoes, and most nuts and seeds are not suitable for people with Type B blood.
Type AB is the latest and rarest blood type, accounting for less than 5% of the population. People with this blood type have characteristics of both Type A and Type B blood. They are adapted to both animal and plant proteins, and their digestive systems are relatively sensitive, so it is better to eat small meals more frequently. Fish, tofu, green leafy vegetables, and dairy products are their healthiest foods.
Analyzing the reasons for the above situation, it is clearly related to a person's genetic characteristics, but the blood type category is the most obvious one. From a health perspective, people with different blood types can refer to the relevant diets mentioned above, which will have profound significance for disease prevention and physical fitness.