Blood Type Diet: A


According to Dr. Peter DÁdamo, author of Eat Right For Your Type, a chemical reaction occurs between your blood and the foods you eat. This reaction is part of your genetic inheritance. This reaction is caused by a factor called Lectins. Lectins, abundant and diverse proteins found in foods, have agglutinating properties that affect your blood. So when you eat a food containing protein lectins that are incompatible with your blood type antigen, the lectins target an organ or bodily system and begin to agglutinate blood cells in that area. Different lectins target different organs and body system.

Fortunately, most lectins found in the diet are not quite so life threatening, although they can cause a variety of other problems, especially if they are specific to a particular blood type. For the most part your immune systems protect you from lectins. Ninety-five percent of the lectins you absorb from your typical diets are sloughed off by the body. But at least five percent of the lectins you eat are filtered into the bloodstream and different reactions in different organs.

Your blood type diet is the restoration of your natural genetic rhythm. Your blood type diet works because you are able to follow a clear, logical, scientifically researched plan based on your cellular profile. Each food groups are divided into three categories: Highly beneficial ( food that acts like Medicine), Foods allowed (food that are no harm to the blood type) and Foods not allowed (food that acts like a Poison)

Type A s flourish on vegetarian diets Type As are predisposed to heart disease, cancer, and diabetes. It is particularly important for sensitive Type As to get their foods in as natural a state as possible: fresh, pure, and organic. When you get on the Type A Diet, you will naturally be thinner. If you are accustomed to eating meat, you'll lose weight rather rapidly in the beginning as you eliminate the toxic foods from your diet. And when you follow the Type diet, you can supercharge your immune system and potentially short-circuit the development of life-threatening diseases.

When Type As eat meat, they experience sluggishness. Type As have low stomach-acid content, therefore they have a hard time digesting meat. Since Type As eat very little animal protein, nuts and seeds supply an important protein component. Type As also thrive on the vegetable proteins found in beans and legumes, except those mentioned for the "Avoid" list. These beans can cause a decrease in insulin production, which may cause obesity and diabetes.

Dairy foods are also poorly digested by Type As, and can cause metabolic slowdown. Type As can tolerate small amounts of fermented dairy products such as yogurt, kefir, nonfat sour cream, and cultured dairy products.

Vegetables are vital to the Type A Diet, providing minerals, enzymes and antioxidants. Type A are very sensitive to the lectins in potatoes, sweet potatoes, yams, cabbage, tomatoes and peppers. They aggravate the delicate stomach of Type A. Type A should eat more fruits that are alkaline, avoid mangoes, papaya and oranges for they are not good for your digestive tract.

Characteristics of Type A - Best on Vegetarian Diet


Most Beneficial

Food allowed

Food not allowed

Meats and Poultry

Type As should eliminate all meats from their diet.

Chicken, Cornish hens, Turkey

Beef, Pork, Lamb, Veal, Venison, Duck, Goose


Carp, Cod, Grouper, Mackerel, Monkfish, Pickerel, Red snapper, Rainbow trout, Salmon, Sardine, Sea trout, Silver perch, Snail, Whitefish, Yellow Perch

All kinds except those listed not allowed

Anchovy, Barracuda, Beluga, Bluefish, Bluegill bass, Catfish, Caviar, Clam, Conch, Crab, Crayfish, Eel, Flounder, Frog, Gray sole, Haddock, Hake, Halibut, Herring, Lobster, Lox, Mussels, Octopus, Oysters, Scallop, Shad, Shrimp, Sold, Squid, Striped bass, Tilefish, Turtle


Most dairy products are not digestible for Type As

Yogurt, Mozzarella, Feta, Goat cheese, Goat milk, Kefir, Ricotta, String cheese

All other cheeses and milk


Olive oil

Cod liver oil

Oil of corn, cottonseed, peanut, safflower and sesame


Peanuts, Pumpkin Seeds

All kinds except those listed not allowed

Brazil nuts, cashews, Pistachios


These beans can cause a decrease in insulin production for Type As.

Beans - copper, garbanzo, kidney, lima, navy, red, tamarind

Type As thrive on the vegetable proteins found in beans and legumes

Beans (Aduke, Azuki, Black, Green, Pinto), Lentils and Black-eyed peas

All kinds except those listed not allowed


Type As generally do well on cereals and grains. Select the more concentrated whole grains instead of instant and processed cereals.

Amaranth, Buckwheat

Cream of wheat, Familia, Farina, Granola, Grape nuts, Wheat germ, Seven grain, Shredded wheat, Wheat bran, Durum wheat

Bread & Noodles

Type As have a wonderful selection and choices in grains and pastas

Bread (Essene, Ezekiel, Sprouted wheat), Rice cakes, Flour (Oat, Rice, Rye), Soba Noodles, Pasta (Artichoke)

All kinds except those listed not allowed

English muffins, Bread (High-protein whole wheat, Multi-grain), Matzos, pumpernickel, Wheat bran muffins, Flour (white, whole wheat), Pasta (Semolina, spinach)


Type As are very sensitive to these vegetables. They have a strong deleterious effect on the Type A digestive tract.

Peppers, olives, Potatoes, Sweet potatoes, Yams, All kinds of cabbage, Tomatoes, Lima beans, Eggplant, Mushroom

These vegetables enhance the immune system of Type As

Garlic, Onions, Broccoli, carrots, collard greens, kale, pumpkin, spinach

Vegetables are vital to the Type A diet, providing minerals, enzymes and Antioxidants. Eat vegetables in as natural a state as possible (raw or steamed) to preserve their full benefits

Artichoke, Chicory, Greens (Dandelion, Swiss Chard), Horseradish, Leek, Romaine, Okra, Parsley, Alfalfa Sprouts, Tempeh, Tofu, Turnip

All kinds except those listed not allowed


Most fruits are allowed for Type As, although try to emphasize more alkaline fruits can help to balance the grains that are acid forming in Type As muscle tissues

Berries (blackberries, blueberries, boysenberries, cranberries), plums, Prunes, Figs

All kinds except those listed not allowed

High mold counts of these fruits make it hard for Type As to digest

Melons, cantaloupe, honeydew

Type As don't do well on these fruits

Mangoes, papaya, Bananas, Coconuts

These fruits are stomach irritant for Type As, and they also interfere with the absorption of minerals.

Orange, Rhubarb, Tangerines

The digestive enzyme in this fruit is an excellent digestive aid for Type As

Pineapples, Cherries, Apricots

These fruits exhibit alkaline tendencies after digestion which has a positive effects on the Type A stomach

Grapefruit, Lemon


The right combination of spices can be powerful immune-system boosters for Type As

Tamari, miso, soysauce, garlic, ginger

Good source of iron, a mineral that is lacking in the Type A Diet

Blackstrap molasses

Avoid these because the acids tend to cause stomach lining irritation

Vinegar, Pepper (black, cayenne, white), Capers, Plain Gelatin, Wintergreen


These products should be avoided because Type As have low levels of stomach acid

Ketchup, Mayonnaise, Pickles, Relish, Worcestershire sauce


These beverages help to improve the immune systems for Type As

Hawthorn, Aloe, Alfalfa, Burdock, Echinacea, Green tea, Red wine (1 glass / day)

These beverages help Type As to increase their stomach-acid secretions

Ginger, Slippery elm, Coffee (1 cup / day)

These don't suit the digestive system of Type As, nor do they support the immune system

Beer, Distilled liquor, Seltzer water, Soda, Black Tea