3 basic principles of nutrition according to blood groups

Blood can say a lot about a person, because it is essentially the carrier of life and destiny. Did you know that there is even a diet based on blood type, which was very fashionable at one time? Some fat people are still interested in it and study the list of allowed products.

It should be said right away that this technique has been repeatedly criticized by doctors and has no scientific basis. But forewarned is armed, so let's try to find out everything about this diet.

History of the child

In the past, people believed that everyone had the same blood. Do you remember the fairy tale about Mowgli? "You and I are of the same blood – you and I! " But soon, after trying to share their blood with the sick and wounded, the theory emerged that the blood was actually different.

Many scientific researches and experiments were conducted with animals and humans, but it was only in 1900 that Karl Landsteiner discovered three blood groups, and a little later the fourth was discovered by his students.

Currently, the world has adopted an alphanumeric classification:

• O or I – first;
• A (II) – others;
• B (III) – third;
• AB (IV) – fourth.

The most common blood groups in the world are the first and second blood groups. Its carriers are 80% of all humanity. The third is rarer, it has 15%, and the fourth is considered the rarest and is represented by only 5%.

The American naturopathic doctor Peter D'Adamo suggested at the end of the twentieth century that if some human diseases are directly related to genetic characteristics and often depend on blood type, then it is likely that a diet according to blood type is also possible. He inquired about the food preferences of each of his patients and put together a proper diet for each group. All products are divided into useful, undesirable and neutral.

D'Adamo has written several books on diet. They were a great success among American readers and became bestsellers. Then his concept "4 blood types - 4 ways to health" spread around the world, and everyone who wanted to lose weight rushed to try the new diet.

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Basic principles and rules

Nutrition according to blood groups boils down to the following.

• In each period of human evolution there was a certain diet, when it changed, the blood mutated and a new group appeared. And, therefore, for each group there is a basic set of products.
• To keep your body in great shape, you need to eat the way your blood type ancestors did. Thanks to the biochemical connection between blood and food, "real" foods are better absorbed, digested faster, accelerate metabolism and strengthen the immune system.
• If you exclude "wrong" foods from your diet, you can improve your body's performance, improve your health and extend your life.

An example is moving to another habitat or even tourism, when the home's unusual cuisine is not accepted by the body and health problems begin.

If a resident of the far north, who has been eating fatty protein food all his life, decides to move to Europe with its cuisine rich in carbohydrates, then there is a high risk of diabetes and digestive problems.

You don't even have to look far for examples, just look around. Some people hate milk, others prefer plant-based foods, and still others will simply starve if they don't eat a large piece of meat. Maybe this is not without reason?

General table for food for all groups

Let's get acquainted with the research of dr. D'Adamo, who divided food according to blood type, distinguishing prohibited, permitted and neutral.

Legend:

• products that should be restricted are marked with a "-" sign;
• allowed – "+";
• neutral – "0".

product name		Group	blood
	I	II	III	IV
Cereals and flour products
Bagels	—	—	—	0
Rice wafers	0	+	+	+
Hot yeast products	—	—	0	0
Buckwheat	0	+	—	—
Corn starch	—	0	—	—
Grits	—	—	0	0
Pearl barley	0	0	—	0
Barley porridge	0	0	—	0
Corn	—	0	—	—
So what	—	—	0	0
Buckwheat flour	0	+	—	—
Wheat flour (of durum variety)	—	—	0	0
Corn grits and flour	—	0	—	—
Oatmeal	—	+	+	+
Rye flour	0	+	—	+
Muesli	—	—	—	0
Cracker Cookies	—	—	0	0
Oat cookies	—	0	+	0
Millet	0	0	+	+
Rye gingerbread	0	—	0	0
Wheat	—	—	—	0
Rice	0	0	+	+
Rye	0	+	—	0
Grain bread	—	—	—	0
Whole wheat bread	—	—	—	0
Spelled bread	0	0	0	0
Wheat-rye bread	0	0	0	0
Wheat bread	—	0	+	0
rye bread	0	0	—	+
rye bread	0	+	—	+
Cornflakes	—	0	—	—
Cereals	—	0	+	+
Wheat flakes	—	—	—	0
Barley	0	0	—	0
Juices and drinks
apricot	0	+	0	0
Cherry	+	+	0	0
Pineapple	+	+	+	0
Orange	—	—	0	—
Birch tree	0	0	0	0
Grapefruit	0	0	+	+
Cherry	+	+	0	+
Sgt	0	0	—	—
grapefruit	0	+	0	0
Cabbage	—	0	+	+
Cranberry	0	0	+	+
Citric	0	+	0	0
Carrots	0	+	0	0
Cucumber	0	0	0	0
Celery	0	+	0	+
Plum	+	+	0	0
Tomato	0	—	—	0
Apple cider	—	0	0	0
Apple	—	0	0	0
Decoctions and herbal teas
Hawthorn	0	+	0	+
Valeriana	0	+	0	0
Ginseng	0	+	+	+
St. John's wort	—	+	0	0
Strawberry leaves	—	0	0	+
Linden	+	0	—	—
Velcro	—	+	0	+
Raspberries	0	0	+	0
Coltsfoot	—	0	—	—
Mint	0	0	0	0
Dandelion	+	0	0	0
Parsley	+	0	+	0
Chamomile	0	+	0	+
Licorice root	0	0	+	+
Yarrow	0	0	0	0
Thyme	0	0	0	0
Echinacea	0	+	0	+
Rosehip berries	+	+	+	+
Milk products
Whole milk	—	—	0	—
Yogurt	—	0	+	+
Casein for food	—	—	0	0
Kefir	—	0	+	+
Goat's milk	—	0	+	+
Skimmed milk	—	—	+	0
Milk serum	—	—	0	0
Ice cream	—	—	—	—
Cream	—	—	0	—
Cream cheese	—	0	+	+
Cow's milk cheese	—	—	0	0
Sheep's cheese	0	0	+	+
Fatted cheese	—	0	0	—
Curd cheese	0	0	+	+
Homemade fresh cheese	0	0	+	+
Oil and fats
Cod liver oil	0	0	0	0
Margarine	0	0	—	—
Peanut butter	—	—	—	0
Coconut oil	—	—	—	—
Corn oil	—	—	—	—
Linseed oil	+	+	0	0
Olive oil	+	+	+	+
Sunflower oil	0	0	—	—
Butter	0	—	0	—
Soybean oil	0	0	—	0
Cotton seed oil	—	—	—	—
Nuts and seeds
Peanuts	—	+	—	+
nuts	+	0	0	+
Pine nuts	0	0	—	0
Almonds	0	0	0	0
Hazelnuts	0	0	—	—
Poppy seeds	—	0	+	+
Sunflower seeds	0	0	—	—
Pumpkin seeds	+	+	—	—
Pistachios	—	—	—	0
Vegetables and mushrooms
Sweet potatoes	+	—	+	+
Sweden	0	0	+	0
Oyster mushrooms	0	+	0	0
Daikon	0	0	0	0
Zucchini, zucchini	0	0	0	0
White cabbage	—	—	+	0
Broccoli	+	+	+	+
Brussels sprouts	—	0	+	0
Chinese cabbage	—	—	+	0
red cabbage	—	—	+	0
Cabbage	+	+	+	+
Cauliflower	—	—	+	+
Potato	—	—	—	0
Korabica	+	+	0	0
Potočarka	+	+	+	+
Green onions	0	+	0	0
Leek	+	+	0	0
Black onion	+	+	0	0
Carrots	0	+	+	0
cucumbers	0	0	0	+
Parsnip	+	+	0	+
Hot pepper	+	—	+	+
Sweet pepper	0	—	+	+
Rhubarb	—	—	—	—
Radish	0	0	—	—
Radish	0	0	—	—
turnip (turnip)	+	+	0	0
A head of lettuce	0	0	0	0
Leaf salad	0	0	0	—
Beet	0	0	0	0
Beet	+	+	+	+
Celery	0	0	0	+
Asparagus	0	0	0	0
Tomato	0	—	—	0
Jerusalem artichoke	+	+	0	0
Pumpkin	+	+	—	0
Chicory	+	+	0	0
Champignons	—	—	0	0
Spinach	+	+	0	0
Legumes
Soy	0	+	+	+
navy beans	—	—	+	+
Black beans	0	+	—	—
Peas	0	0	0	0
Peas	0	0	0	0
Soy milk	+	+	0	0
Soy cheese	+	+	0	0
White beans	0	0	0	0
Multicolored beans	+	+	—	+
Lentils	—	+	—	+
Herbs and spices
Vanilla	—	0	0	0
Carnation	0	0	0	0
Mustard	0	+	0	0
Fruit jam and jelly	0	0	0	0
Ketchup	—	—	—	—
Coriander	0	0	0	0
Cinnamon	—	0	—	0
Laurel leaf	0	0	0	0
Mayonnaise	0	—	—	0
Honey	0	0	0	0
Nutmeg	—	0	0	0
Paprika	0	0	0	0
Pepper curry	+	0	+	+
Black pepper	—	—	0	—
Parsley	+	0	+	+
Sugar	0	0	0	0
Pickles and marinade	—	0	0	—
Kim	0	0	0	0
Dill	0	0	0	0
white vinegar	—	—	0	—
Wine vinegar	—	—	0	—
Vinegar	—	—	0	—
Fennel	0	0	0	0
Horseradish	0	0	+	+
Chocolate	0	0	0	0
Fruits and berries
Avocado	—	0	—	—
Cherry	+	+	+	+
Pineapple	0	+	+	+
Orange	—	—	0	—
Watermelon	0	0	0	0
Banana	0	—	+	—
Yellow	0	—	—	—
Cowberry	0	+	+	+
Grapefruit	0	0	+	+
Cherry	0	+	0	+
Blueberry	0	+	0	0
Sgt	0	0	—	—
grapefruit	0	+	0	+
Pear	0	0	0	0
Melon	—	—	0	0
Blackberry	—	+	0	0
Raisins	0	0	0	0
Fig	+	+	0	+
Kiwis	0	0	0	+
Strawberry	—	0	0	0
Cranberry	0	+	+	+
Gooseberry	0	0	0	+
Lemon	0	+	0	+
Raspberries	0	0	0	0
Tangerine	—	—	0	0
Green olives	—	—	—	0
Black olives	—	—	—	0
Nectarine	0	0	0	0
Coconut	—	—	+	+
Peach	0	0	0	0
Plum	+	+	+	+
Currants	0	0	0	0
dragoon	0	0	—	—
Cherries	+	+	0	+
Blueberry	0	+	0	0
Prunes	+	+	0	0
Apple	+	+	+	+
Sea food
Carp	0	+	0	0
Smelt	0	0	0	0
Catfish	—	—	0	0
Caviar	—	—	—	+
Squid	0	—	0	—
Flounder	0	—	+	—
Salmonidae	+	+	+	+
Smoked salmon	—	—	—	—
Mackerel	+	+	+	+
Seaweed	+	0	—	0
Bro	0	0	+	+
River perch	0	0	0	0
Sturgeon	+	0	+	+
Halibut	+	—	+	—
Crabs	0	—	—	—
Pickled herring	—	—	+	—
Fresh herring	+	+	0	0
Salted herring	—	—	0	—
White fish	+	+	+	+
River pike	+	0	+	+
Catfish	—	—	0	0
Zander	0	+	+	+
Cod	+	+	+	+
Tuna	0	0	0	+
Acne	0	—	—	—
Mackerel	+	+	+	+
Trout	+	+	+	+
Hake	+	—	+	—
Meat products, poultry, eggs
Ham	—	—	—	—
Beef	+	—	0	—
Ground beef	+	—	0	—
Veal	+	—	0	—
Bacon	—	—	—	—
Mutton	+	—	+	+
Rabbit meat	0	—	+	+
Goose	—	—	—	—
Duck	0	—	—	—
Turkey meat	+	0	0	+
Broiler chickens	0	0	—	—
Eggs	0	0	+	0
Chicken meat	0	0	—	—
Ham	—	—	—	—
Heart	+	—	—	—
Liver	+	—	0	0
Fat	—	—	0	0
Pork	—	—	—	—
Other drinks
white wine	0	0	0	0
red wine	0	+	0	0
He drinks water	+	+	+	0
Vodka	—	—	—	—
Coca Cola	—	—	—	—
Cognac	—	—	—	—
Coffee black	—	+	0	+
Lemonade	—	—	—	—
Alcohol tinctures	—	—	—	—
Beer	0	—	0	0
Carbonated drinks	+	—	—	0
Green tea	0	+	+	+
Black tea	—	—	0	—

Diet according to blood type 1

The most common in the world is the first positive blood group. It is most often found among Eastern Slavs and American Indians.

People with the first blood group are universal donors, that is, this blood group is suitable for absolutely everyone. By the way, mosquitoes prefer the first blood type over all others.

Characteristics of feeding behavior (hunter, carnivore)

Absolutely all ancient people who lived in a primitive communal system had the first blood group, and everything else was created by mutation.

Now recall the history of the ancient world, archaeological excavations and the conclusions of scientists - 40, 000 years ago primitive people lived by hunting and gathering. Their main diet was meat, meat and more meat, and only then roots, herbs and the few edible fruits and berries that grew wild in the forests.

So, the owners of the first group carry the genes of the oldest hunters and their body at the gene level requires as much protein as possible. The diet, unfortunately, is the poorest. If you decide on such a diet, then you will have to give up a lot of your favorite foods.

The diet for the first blood type includes meat, fish and vegetables. It is better not to consume milk and its derivatives at all.

Allowed and prohibited products

	What you can eat	What to limit	Neutral products
Meat	Beef, veal, lamb, turkey, offal (liver, heart), ground beef.	Ham, ham, dry meat, pork, fat, goose.	Rabbit, duck meat, broiler chicken, chicken, eggs.
Fish and seafood	Halibut, sturgeon, seaweed, fresh herring, pike, cod, mackerel, trout, hake.	Salted and pickled herring, catfish, caviar, smoked salmon, catfish.	Carp, snook, flounder, squid, perch, perch, tuna, eel, crabs.
Oil	Olive and linseed.	Peanuts, corn, cottonseed, soybeans.	Cod liver oil, margarine, soy, sunflower and butter.
Nuts and seeds	Nuts, pumpkin seeds.	Peanuts, poppy seeds, pistachios.	Almonds, hazelnuts, pine nuts, sunflower seeds.
Milk products	—	Almost all dairy products.	Sheep and fresh cheese, fresh cheese.
Vegetables and fruits	Broccoli, kale, kohlrabi, watercress, leek, onion, parsnip, hot pepper, turnip, artichoke, pumpkin, chicory, spinach, cherry, figs, plums, cherries, prunes, apples.	White cabbage, Brussels sprouts, Chinese cabbage, red cabbage, cauliflower, potatoes, rhubarb, mushrooms, lentils, avocados, oranges, melons, blackberries, tangerines, olives.	Zucchini, green onions, carrots, cucumbers, sweet peppers, radishes, radishes, lettuce, lettuce, beets, celery, asparagus, tomatoes, black beans, green peas, green peas, white beans, pineapple, watermelon, banana, cranberries, grape, cherry, blueberry, pomegranate, grapefruit, pear, raisin, kiwi, cranberry, gooseberry, lemon, raspberry, nectarine, peach, currant, dragoon, blueberry.

Sample menu for one day

• Breakfast– grilled veal steak, fresh vegetable salad.
• A snack– an apple or any other allowed fruit in season.
• Dinner– baked trout, green tea.
• Afternoon snack– a handful of walnuts.
• Dinner– sea cocktail with seaweed.

Diet according to blood type 2

No less common group. It is literally a couple of hundred years younger than the first and was created by mutation after the old hunters decided to settle in a permanent place and engage in agricultural work.

People with blood type O produce more of the hormone cortisol, which helps deal with stress. In addition, they are unfortunately prone to alcoholism.

Characteristics of eating behavior (farmer)

25, 000 years ago, meat-eating hunters learned to cultivate the land and receive its gifts. It is the very beginning of the development of the agricultural way of life. People began to build settlements, cultivate fields, plant grains and vegetables.

There was less protein food, animals moved away from people and meat became harder to come by.

Sometimes the second blood type is called "vegetarian". The largest number of its speakers live in Europe.

The diet of people with the second blood type should include vegetarian dishes, fish, poultry and dairy products. But it is advisable to give up coffee, beans and meat.

Allowed and prohibited products

	What you can eat	What to limit	Neutral products
Meat	—	Beef, veal, lamb, offal (liver, heart), ground beef, ham, bacon, ham, goose and duck meat, pork, rabbit, fat.	Eggs, broilers, chicken, turkey.
Fish and seafood	Varieties of salmon, carp, mackerel, fresh herring, cod, mackerel, trout.	Squid, catfish, caviar, halibut, flounder, smoked salmon, catfish, crabs, salted herring.	Spicy, seaweed, pike, tuna, perch, sturgeon.
Oil	Olive and linseed.	Peanuts, coconut, corn, cotton, butter.	Cod liver oil, margarine, soy and sunflower.
Nuts and seeds	Peanuts, pumpkin seeds.	Pistachios.	Almonds, hazelnuts, poppy seeds, sunflower seeds, pine and walnuts.
Milk products	—	Milk, ice cream, cream, whey, cow's cheese.	Yogurt, kefir, goat's milk, sour cream, sheep and fresh cheese, fresh cheese.
Vegetables and fruits	Broccoli, collards, kohlrabi, watercress, green onions, leeks, onions, carrots, parsnips, turnips, pumpkin, chicory, spinach, black beans, kidney beans, lentils, cherry plums, pineapples, cranberries, cherries, blueberries, black grapefruit, figs, cranberries, lemons, plums, cherries, blueberries, prunes, apples.	Tomatoes, white and cauliflower cabbage, mushrooms, olives, hot and sweet peppers, potatoes, rhubarb, tangerines, bananas, oranges.	Peppers, nutmeg, coriander, cloves, radishes, beets, cucumbers, zucchini, fennel, Brussels sprouts, radishes, lettuce, celery.

Sample menu for one day

• Breakfast- buckwheat porridge, Korean carrots, green tea.
• A snack– any allowed fruit or vegetable.
• Dinner– boiled chicken breast with green beans side dish.
• Afternoon snack– carrot juice.
• Dinner– fruit salad with fresh cheese.

Diet according to blood group 3

The third group is quite rare and is more characteristic of Asian peoples - in ancient times they were known for huge herds of livestock - horses, cows, goats and sheep. Of course, they had to wander from place to place to feed the animals.

Peculiarities of eating behavior (nomad)

As soon as milk and milk products began to be actively introduced into the diet, which happened about 10, 000 years ago, the blood mutated again.

The largest number of people with the third blood group live in Asia - they are hereditary nomads.

This type of people is the luckiest - they practically have no restrictions, they are omnivores. It is necessary to exclude semi-finished products, smoked meat and alcohol.

Allowed and prohibited products

	What you can eat	What to limit	Neutral products
Meat	Lamb, rabbit, eggs.	Ham, bacon, pork, duck, goose and chicken, chicken.	Beef and ground beef, turkey, fat.
Fish and seafood	Almost all types of fish.	Smoked salmon, caviar, seaweed, eel, crabs.	Carp, snook, perch, herring, tuna, catfish.
Oil	Olive.	Margarine, peanuts, coconut, corn, cottonseed, soy, sunflower.	Butter and linseed, cod liver oil.
Nuts and seeds	Poppy.	Peanuts, pine nuts, hazelnuts, pumpkin and sunflower seeds.	Walnuts, almonds.
Milk products	Yogurt, kefir, goat's milk, sour cream, sheep's cheese, fresh cheese.	Ice cream.	Whole milk, cheese, whey, cream.
Vegetables and fruits	Cauliflower, white and red cabbage, carrots, broccoli, hot and sweet peppers, beets, watercress, pineapple, cranberries, bananas, grapes, apples, cranberries, plums.	Corn, lentils, beans, potatoes, rhubarb, radishes, radishes, tomatoes, pomegranates, avocados, pumpkins, barberries, olives, persimmons.	Melon, spinach, watermelon, grapefruit, cherry, fig, blueberry, raisin, pear, blackberry, blueberry, lemon, kiwi, strawberry, gooseberry, prune, raspberry, nectarine, currant, peach, cherry, dill, kohlrabi, onion, zucchini, asparagus, parsnip, turnip, beetroot, celery, Jerusalem artichoke.

Sample menu for one day

• Breakfast– boiled eggs, cottage cheese, herbal tea.
• A snack– fruit in season.
• Dinner– mushroom cream soup, rabbit stew.
• Afternoon snack– natural yogurt with pieces of banana.
• Dinner– boiled veal with green peas.

Nutrition according to blood type 4

The fourth group was formed by the mixing of the second and third groups after people began to live in large settlements and cities.

People with blood type IV are more likely to have senile dementia and Alzheimer's disease. But they are also universal donors of plasma, which is very valuable in the treatment of burns.

Peculiarities of eating behavior (enigma)

This blood is the youngest, its age does not exceed two thousand years. It is truly unique in its composition and is resistant to autoimmune and allergic diseases.

These people have a mixed diet; there are quite a few dietary restrictions. But it is recommended that they eat as much natural bio-food as possible.

Allowed and prohibited products

	What you can eat	What to limit	Neutral products
Meat	Lamb, rabbit, turkey.	Beef and ground beef, ham, bacon, poultry, pork.	Eggs, liver, fat.
Fish and seafood	Fish salmon, caviar, mackerel, perch, sturgeon, pike, perch, cod, tuna, trout, mackerel.	Squid, flounder, smoked salmon, monkfish, salted herring, eel, hake.	Seaweed, carp, soot, perch, catfish, fresh herring.
Oil	Olive.	Margarine, butter, coconut, corn, cotton, sunflower.	Peanuts, soy, linseed, cod liver oil.
Nuts and seeds	Peanuts, poppy seeds, walnuts.	Pumpkin and sunflower seeds, hazelnuts.	Almonds, pistachios, pine nuts.
Milk products	Yogurt, kefir, goat's milk, sheep's cheese, fresh cheese, sour cream.	Ice cream, cream, whole milk.	Whey, cheese, skimmed milk,
Vegetables and fruits	Cabbage, beets, potatoes, figs, celery, kiwi, cherries, pineapple.	Black olives, green pepper, corn, bananas, coconut, pomegranate.	Carrots, kohlrabi, horseradish, Chinese cabbage, apples, apricots, watermelon.

Sample menu for one day

• Breakfast– whole grain bread, tofu (beans), radish salad.
• A snack- vegetables or cottage cheese.
• Dinner– baked fish with mashed potatoes, carrot salad.
• Afternoon snack- yogurt.
• Dinner– omelette, green salad, whole grain bread.

Does the Rh factor affect nutrition?

We know from school that there are a total of four blood groups, and taking into account the Rh factor, their number doubles. It was first discovered after research on rhesus monkeys, which is why it got its name. The Rh factor can be positive and is designated (Rh+) or negative (Rh-). It indicates the presence or absence of an antigen (protein) located on the surface of red blood cells (erythrocytes).

But in fact, the division of blood into only four groups is arbitrary - if we take into account all the properties of blood, then there will be many more. D'Adamo ignores this fact.

In D'Adam's famous book, the influence of the Rh factor is not mentioned at all. Since more than 80% of the world's population has a positive Rh factor, the diet is designed specifically for these people.

Diet contraindications

Without prior consultation with your doctor, people with the following diseases are prohibited from following a diet independently:

• diabetes;
• chronic digestive problems;
• disorder of hematopoiesis;
• ARVI.

In addition, if some diseases have worsened, it is also not recommended to go on a diet until you feel better.

In no case do not experiment on yourself during pregnancy or breastfeeding; remember that you are responsible not only for your life, but also for the baby.

Weight loss reviews

• "This is an ideal diet for people who do not have health problems. But, if you are overweight, a priori there are various diseases, so the diet stops working. It is convenient, of course, that there is a wide selection of products, but this method did not suit me - doctorforbade eating all the products allowed on the table. It turned out that the table is almost 90% contrary to the doctor's recommendations. "
• "I don't have a medical education, but I clearly see the huge flaws - the diet is completely unscientific. One of them is that people of the second group should rely on vegetarian food, and those who have the third and fourth are omnivores, but they just come from the second. In general, I won't even try. "
• "I lost 10 kg in a few months! The blood type diet is very cool, it's easy to lose weight. I think you can stay on this diet for the rest of your life. I recommend this wonderful diet to everyone who wants to lose weight! "
• "Diet according to blood groups is complete nonsense. Do not bother yourself with these healthy, harmful and neutral products. Eat everything in moderation, without fanaticism. If you want something sweet, eat 1-2 candies, not the whole chocolate; if you want bread, cut off a piece andeat it, but do not starve. "
• "I showed approved products for another blood group at work - the whole team laughed, wiped away tears and ate a meat cutlet (yes, yes, half of our team are "farmers"). Honestly, I have never seen a more stupid and completely unacceptable diet! "

Opinions and reviews of doctors

Doctors have not approved the blood test diet. After all, each person is so individual that it is necessary to conduct complex research and have data on more than sixty specific genes that are responsible for endocrine and enzyme activity, and only then create a diet. And blood group in this case is too generalizing a factor and cannot be responsible for the correctness of a certain person's menu.

So, doctors clearly believe that D'Adamo's theory has no scientific basis, that it has been little studied, but that it does not cause any particular harm. And in some cases, it even helps to stimulate the body and activate a faster metabolism.

In addition, D'Adamo included really harmful products among the prohibited foods for all blood groups - sausages and smoked meats, store-bought sauces, ice creams, carbonated drinks, alcohol and some others.

Well, don't forget the placebo effect - the person believes and loses weight.

Advantages and disadvantages of diets

Advantages:

• a huge list of allowed products;
• easy to carry;
• the possibility of creating a varied and balanced menu;
• you can stick with it for a long time.

Disadvantages:

• there is no clear plan of how, when and in what quantities to consume certain products;
• diet has no scientific basis, all conclusions are too general;
• another profitable business for nutritionists and, of course, the creator himself.

Conclusion

As practice shows, some people really managed to lose weight on this diet. But they notice that the results don't last - the weight always comes back. So, you will have to eat right almost all your life.