All our ancestors belonged to blood type zero, lived in a limited living space, eating the same food, so no changes were necessary. With the increase in population, there was a search for new sources of large game, and migrations led to the appearance of variations, that is, to the appearance of A and B, and later the blood type AB.

Blood type O
The best diet for this blood type is one that is rich in protein, quality meat, fish, as well as vegetables and fruits.

Allowed foods: beef, veal, hake, mackerel, trout, olive and flax oil, pumpkin seeds, nuts, garlic and onions, parsley, broccoli, red pepper, pumpkin, green vegetables, potatoes, figs, plums.

Forbidden foods: pork, cream cheese, yellow cheese, cow’s and goat’s milk, yogurt, sour milk, whey, cream, multi-colored beans, wheat, corn, oats, pastries, cauliflower, eggplant, olives, red potatoes, mushrooms, red cabbage, Brussels sprouts, blackberries, strawberries, coconut, oranges, tangerines, vinegar, ground black pepper, cinnamon, vanilla, ketchup, coffee, strong alcoholic beverages, black tea. Foods that promote weight gain in people with blood type zero are: gluten, sweet corn, lentils, beans, cabbage, kale, mustard.

Blood type A
A blood type A is best suited to a vegetarian diet. Lots of fruits, vegetables, and grains are what is recommended first and foremost for these people.

Allowed foods: all types of fish, soy milk, olive oil, pumpkin, peanuts, beans, lentils, buckwheat, oat, rye, and rice flour, broccoli, carrots, green cabbage, arugula, kale, leeks, parsley, spinach, pumpkin, potatoes, apricots, blackberries, blueberries, lemon, cherries, figs, grapefruit, pineapple, plums, raisins, dried apricots, carrots, prunes, lemonade with honey, mustard, green tea, and red wine.

Forbidden foods: All types of meat – except chicken, butter, ice cream, cream cheese, cheese, cow’s milk, whey, pistachios, yellow and colored beans, red cabbage, eggplant, mushrooms, tomatoes, red potatoes, bananas, oranges, tangerines, red pepper, vinegar, ketchup, mayonnaise, beer, hard alcoholic beverages and carbonated drinks.

Blood type B
If you have this blood type, you are among the lucky ones, D’Adamo says that you can eat almost anything, without having problems with weight and digestion. However, there is a smaller list of foods that you should avoid.

Foods to avoid: bacon, chicken, pork, sunflower oil, hazelnuts, sunflower, peanuts, pumpkin, black beans, olives, lentils, buckwheat, tomatoes, ketchup, cinnamon, black pepper.

Foods that have the most beneficial effect: lamb, rabbit, fish – hake, mackerel, pike, feta cheese, salty cow’s cheese, yogurt, olive oil, rice flakes, beets, broccoli, potatoes, cabbage, carrots, cauliflower, red and green peppers, bananas, watermelon, grapes, pineapple, plums, curry, pomegranate, mint and green tea from the tea group.

Blood type AB
This is the rarest and most specific blood type. If you belong to this group, it is recommended to have several smaller meals throughout the day.

Allowed foods are: lamb, turkey, fish, cheeses, dairy products, nuts (walnuts, almonds), green vegetables, beets, figs, grapes, cherries, coffee. If you want to lose weight, you should consume tofu (soy cheese), seafood, dairy products, pineapple.

Forbidden foods: pork, beef, veal, chicken, game, shellfish, sunflower and sesame oil, hazelnuts, pumpkin seeds, black beans, corn, radish, banana, orange, coconut, pomegranate, dates, ketchup.

Characteristics of blood groups – strengths and weaknesses
To the eternal question of whether food has a universal character or is it a food that is food for one person and (almost) poison for another, Dr. Peter D’Adamo answers: “Tell me your blood group and I will tell you whether you are nourishing or poisoning yourself.

What are the characteristics of individual blood groups?
Blood group zero
Strengths of people with blood group zero: strong digestive system, strong immune system, natural protection against infections, efficient metabolism.

Weaknesses: intolerance to new food and new environmental conditions. Due to excessive activity of the immune system, it may attack itself.

Risks: coagulation disorders, inflammatory diseases, joint inflammation, decreased thyroid function, ulcers, allergies.

Dietary supplements: vitamins B and K, calcium, iodine, licorice, seaweed.

Blood type A
Strengths: adapts well to changed diet and new environmental conditions. Easily metabolizes nutrients.

Weaknesses: sensitive digestive system; vulnerable immune system – open to infections.

Risks: heart disease, cancer, anemia, liver and gallbladder diseases, type 1 diabetes.

Nutritional supplements: vitamins B, C and E, folic acid, echinacea, quercetin.

Blood type B
Advantages: strong immune system, adaptability to new environment and new diet, balanced nervous system.

Weaknesses: susceptibility to autonomic diseases and rare viral infections.

Risks: type 1 diabetes, chronic fatigue, autoimmune diseases (lupus, multiple sclerosis…).

Dietary supplements: magnesium, ginkgo, lecithin, licorice.

Blood type AB
Strengths: adapts well to modern conditions. Very tolerant immune system, combines the advantages of blood types A and B.

Weaknesses: sensitive digestive system. An overly tolerant immune system can be open to infections. It reacts negatively to the circumstances of both type A and type B.

Risks: heart disease, cancer, anemia.

Dietary supplements: vitamin C, selenium, zinc (both minerals should be used with caution, with prior consultation with a doctor!)