Nutrition According to Blood Groups

The phenomenon of nutrition by blood type was discovered in the 1980s. Accordingly, those who want to be healthy and keep their weight in balance or who want to lose weight in a healthy way can create a diet according to blood groups.

American doctor Peter James D’Adamo established this system after seeing that some of his patients who were fed the same way lost weight, while others lost weight. The doctor, who started to research on this subject, explained the details of nutrition according to blood groups in his book named “Food for one person can be poison for another”. Although this diet is still discussed by some scientists, it is a system that many people follow up to date and organize their lives accordingly. Here, Dr. According to D’Adamo’s system, the diets to be followed by people with A, B, AB and O blood type:


This blood group was found in Asia or the Middle East before Christ. It is thought to have emerged between 25,000 and 15,000 years ago. The ancestors of this group are thought to be the first vegetarians. The people living in the stone age to cultivate the soil and to feed on grass and plants caused the birth of a new blood group. In East Asia, Japan is the country with the highest incidence of group A.

Characteristics of Blood Group A

  • They are the first vegetarians.
  • Digestive systems are sensitive.
  • Immune systems are strong.
  • They quickly adapt to nutritional and environmental conditions.
  • They beat stress.
  • To be strong and healthy, they should follow a diet focused on vegetables.

Health Risks of Blood Group A

  • Immune system
  • Cardiovascular diseases
  • Cancer
  • Diabetes
  • Water collection caused by the digestive system of the body

Sports Suitable for Blood Group A

  • Brisk walking: 2-3 times a week for 30 minutes
  • Swimming: 3-4 times a week 30 minutes each time
  • Yoga and pilates: 30 minutes 2-3 times a week
  • Dance: 45 minutes 2-3 times a week
  • Aerobics: 45′ 2-3 times a week every minute
  • Stretching: 3-5 times a week for 15 minutes

Health Advice for Blood Type A

  • Consume organic food as much as possible.
  • Consume plenty of vitamin B12.
  • Take vitamin C supplements in a way that the dose is not high. (It should not exceed 250 milligrams.)
  • If you are middle-aged, take a calcium supplement between 300 and 600 milligrams per day. The body meets its iron need with red meat, but since there is no red meat in group A, iron supplements should be taken under the supervision of a doctor.

What Should Group A Eat?

Running snacks are very unhealthy for this group.Soy proteins, grain products and vegetables are the foods that should be given weight for group A. Group A is the opposite of group O in terms of metabolism. If you are in this group, you feel heavy when you eat red meat, your energy is lost. However, you get energy from protein foods and vegetables, and you will be more lively and vigorous with these foods. For those in the 0 group, meat is like the fuel that gives energy to the body. In group A, meat is stored in the body as fat. Therefore, if you are in group A, you should consume fish instead of meat to lose weight in a healthy way. You can consume fish 2-3 times a week. When you eat meat, choose lean, boiled or baked meat. Avoid foods such as salami and sausages. Group A has less stomach acid. Dairy foods are difficult to digest. Milky foods increase the insulin reaction, so their metabolism slows down. Also, dairy foods are high in saturated fat. This leads to obesity and diabetes. Therefore, if you are in group A, do not consume too much dairy foods. Vegetables are the crown of the group A diet. Vegetable consumption is important for minerals, enzymes and antioxidants that the body needs.Carrots, mushrooms, soybeans, lentils, pumpkin and spinach are among the vegetables that are most beneficial for you. If you are in group A, you can consume three meals a day of fruit. Plum, cherry, grapefruit are useful fruits. Red wine and green tea are recommended for those in group A. They can also consume coffee, not exceeding two cups a day. You should eat little and often. Six meals a day are ideal. Garlic is very important for group A. Garlic, which has antibiotic properties, also strengthens the immune system. Garlic is beneficial for every blood group, but it is more important for group A than other groups. Lemon is very beneficial for you. It is very helpful to start your day by squeezing a lemon into a glass of water.


This group emerged in the Himalayas between 10,000 and 15,000 BC. It can be said that he was born in Pakistan and India. People who migrated from East Africa to the Himalayas were exposed to climate change and carried group B blood. Group B is most common in Japan, Mongolia, China and India. As you go west, the number of people with group B decreases.

Those in group B are resistant to even the most severe diseases. They beat heart diseases and cancer at a higher rate than other groups.

Characteristics of B Blood Type

  • Digestive systems are strong.
  • They do not need to be strict and prescriptive in nutrition.
  • They are very interested in dairy foods.
  • They are creative in eliminating stress.
  • In order to stay in shape, they must balance physical and mental activities.

Health Risks of B Blood Type

  • Fatigue, weakness
  • Irregularities in the immune system
  • Low blood sugar

Sports Suitable for B Blood Group

  • Aerobics : 1 hour 2-3 times a week
  • Bike: 1 hour 2-3 times a week
  • Swimming: 45 minutes 3-4 times a week
  • Golf: 2 times a week 1 ‘every hour

Health Advice for B Blood Type

If you are not intolerant to dairy foods, use soy products. You may not be intolerant to some substances in chicken, do not consume too much.
Do not eat too much. If you do, you don’t need vitamin and mineral supplements. Those in this group can live long and healthy lives if they live in accordance with their diet.Group B is in a balance between groups A and 0. Corn, wheat, lentils, hazelnuts and sesame seeds cause weight gain in group B, accumulation of water in their bodies, low blood sugar and feeling tired. If you are in this group, avoid these foods. If their blood sugar drops after a meal, they may think it is better to eat less and more often. However, if you are in group B, low blood sugar is common and it is not the frequency of meals that matters, but which foods are preferred. Therefore, you should stay away from the foods we just mentioned. Those in this group lose weight easily. The only group that benefits from dairy foods is group B. If you are in group B, you can consume dairy foods in moderation. If you do not have a milk tolerance, you can also choose soy milk foods. If you have a problem in the immune system, you should not eat lamb and rabbit meat, and prefer veal and turkey. However, stay away from chicken meat. Deep sea fish are beneficial for group B. However, lobster, shrimp, mussel and squid cannot be said to be very beneficial for group B. Consume plenty of olive oil for the proper functioning of your digestive system.These oils are harmful for group B. All vegetables are beneficial for group B. Especially green leafy vegetables are perfect for you. Potatoes, cabbage and mushrooms are very useful. Green tea, red wine and beer are recommended for B group drinks.


This blood group is rare. It was formed by the mixing of different societies in the east and west. This blood group, which is thought to have occurred in 900 AD, includes approximately 5 percent of people in the world. People in this group have a very strong immune system, but have a high risk of developing certain types of cancer.

Features of AB Blood Group

It is a mixture of A and B.
They show a nutritional feature originating from environmental effects.
Digestive systems are sensitive.
Immune systems are strong.
They mostly resort to mental activities to overcome stress.
All foods that are undesirable for groups A and B are also dangerous for group AB.

Health Risks of AB Blood Group

  • Childhood and old age diseases
  • Allergies
  • Asthma
  • Hay fever
  • Immune system problems
  • Cardiovascular diseases
  • Diabetes
  • Infectious diseases
  • Liver problems
  • Skin problems
  • Reproductive problems in women

Sports Suitable for AB Blood Type

  • Cycling: 1 hour 2-3 times a week
  • Swimming: 30 minutes 3-4 times a week
  • Dance : 45 minutes 2-3 times a week
  • Aerobics: 45 minutes 2-3 times a week

Health Recommendations for AB Blood Type

Consume vegetables as well as meat.
Because your stomach acid is low, eat often and little.
Take a vitamin C supplement.

How Should People with AB Blood Type Be Eaten?

You are a semi-vegetarian group.Foods that are not suitable for these groups are also inconvenient for you. Tomato alone is beneficial to you while not recommended to other groups. You have the characteristics of groups A and B when it comes to gaining weight. This can cause some problems. For example, you may have low stomach acid, like those in A, or you may have trouble digesting meat, like those in B. If your intention is to lose weight, avoid eating too much meat. Also, when you eat meat, be sure to consume vegetables with it and make sure that the vegetables are more than meat. When you eat meat, choose lamb, mutton, rabbit and turkey. Avoid chicken, beef, and beef. You can consume seafood, dairy products and fresh vegetables. These foods will help you lose weight. Eat little and often. You can develop a habit similar to those in group B for dairy foods. You can consume yogurt and kefir. All fruits except pomegranate are suitable for you. You can choose green tea as a drink.


This blood group is the group of people who hunt wild animals first and make their meat their food. Therefore, it is thought that those in the 0 group cannot give up meat, especially red meat.

Especially prefer vitamins B and K. Vitamins C and D are abundant in foods suitable for 0 blood group. For this reason, you do not need to take vitamin C and D supplements to your body. Do not take vitamin A supplements without asking your doctor, since your blood’s coagulation power is weak.
Milk and dairy foods are not on your diet list. For this reason, you can get your calcium needs with supplements.

What should people with 0 blood type be fed with?

The success of this group in diet depends on consuming meat and fish that are fat-free, chemical-free, and not frozen. If you have O blood type, you can easily consume red meat. Your tolerance to milk and dairy foods is not as high as other groups. You should not consume dairy products and eggs too much. If you want to lose weight, you should stay away from cereal products, bread types and grain vegetables. Gluten in wheat prevents you from losing weight. You should not choose products made with wheat flour. Your metabolism works at a slower rate. For this reason, you should make extra effort to burn what you eat and turn to physical activities.Snacks are not very important for you because your blood sugar will be balanced when you do not consume too many carbohydrates. However, you should be careful not to skip meals. You should avoid carbonated drinks, black tea and coffee. You can easily consume red wine and green tea.