In his book, "Eat Right 4 Your Type," Dr. Peter D'Adamo explains that because people have evolved from different cultures and have different blood types, we have different nutritional requirements. Furthermore, our varied backgrounds predispose us to certain health conditions that may be avoided if we eat the right kinds of foods. Type B blood types, for example, descended from nomadic peoples of Eastern Africa, the Eurasian plains, and into Southern China. They tend to thrive better on a diet native to those areas.
Fruits and Vegetables
The best vegetables for B blood types are crucifers such as broccoli, cauliflower, cabbage and kale, as well as root veggies such as carrots and beets. Vegetables to avoid include artichokes, avocados, pumpkins, olives and tomatoes. The best fruits include bananas, cranberries, pineapples and papayas. However, coconut, persimmons, pomegranates, rhubarb and starfruit should be avoided. Apples, apricots, most berries, cherries, mangoes, melons, peaches and kiwis can be eaten in moderation, no more than once or twice a week. Veggies that may be consumed in moderation include asparagus, lettuce, celery, mushrooms and both red and white potatoes.
Grains and Legumes
For B blood types, the best grains to use for bread, cereal and pasta include rice, oatmeal and millet. Unfortunately, the more common grains such as wheat, rye, barley and corn should be avoided as they may cause food allergies. Granola, spelt and quinoa may be eaten in moderation, no more than once or twice a week. Other complex carbohydrates that are acceptable for B blood types include red soy, kidney, navy and lima beans. Avoid lentils, black-eyed peas, garbanzos and pinto beans as much as possible, and consume green peas, fava beans, red beans and jicama in moderation.
Meats and Dairy
B blood types are able to enjoy most meats without any serious dietary problems. The best meats for this blood type are lamb, venison, rabbit, most white fishes and salmon, with beef, buffalo, turkey, scallops, catfish, and other freshwater fishes consumed no more than once or twice a week. However, many fowls, including chicken and duck, should be avoided, along with pork, shellfish and mollusks such as clams and oysters. Because chicken is on the potential allergens listed for B blood types, B types should also avoid eggs unless they are home or farm raised. Acceptable dairy products include cottage and ricotta cheeses, yogurt and goat milk products such as feta and kefir. Avoid blue cheeses and any other type of strong cheese.
Nuts and Oils
B blood types are limited to olive oil, and should avoid all other common oils, including vegetable oil, canola, cottonseed and peanut oil. Cod liver oil and flaxseed oil may be used in moderation, no more than once or twice a week. B blood types should also avoid all nuts and seeds as they are potential allergens. It is best to obtain your dietary fats from dairy and other animal products.
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