Research indicates that your blood type is a key genetic factor that influences many areas of health and well-being. You’ve probably observed that some people tend to lose weight more easily, while for others, their weight is an ongoing battle. Or wondered why some people are plagued by chronic illness while others stay healthy and vital well into their advanced years.
The answer may be in your blood type. Knowing your blood type is an important tool for understanding how your body reacts to food, your susceptibility to disease, your natural reaction to stress, and so much more.
In 1901, Dr. Karl Landsteiner discovered that there were four types of human blood. He named them A, B, AB, and O. He discovered that blood types are not compatible with each other because of antibodies. These antibodies cause blood to clump together if a different blood type is mixed with it.
Dr. Peter D’Adamo, author of “Eat Right For Your Type”, discovered that foods can cause blood cells to become sticky and clump together in a process called agglutination.
Dr. D’Adamo’s father, James, is also a naturopathic physician noticed that different diets worked better with some patients than others. In his book, “One Man’s Food—Is Someone Else’s Poison”, he attributed this to the differences in blood type.
Dr. Peter D’Adamo continued his father’s research by studying the agglutination process that occurs between specific blood types and certain foods. He believes it is the result of the evolution of the unique blood types.
The 4 Blood Types
There are 4 types of blood – O, A, B and AB. Each blood type reacts differently with different kinds of foods. Your blood type is the reason why you can digest some types of foods, while other types of foods just don’t agree with you.
The Blood Type diet is based on the fact that all foods have lectins, or proteins that can interact with antibodies in blood. Dr. D’Adamo has tested most foods and determined which blood types react adversely to lectins in most foods.
When a specific food’s lectin reacts with a specific blood type (A, B, AB, or O), it causes a process called agglutination to occur. In agglutination, the lectins cause the blood to become sticky. Dr. D’Adamo believes these sticky blood cells can lead to medical conditions such as impaired digestion, kidney and liver problems, headache, diabetes, obesity, and many others.
In order to reverse the problems caused by agglutination, an individual must avoid or limit the consumption of foods that cause it. Dr. D’Adamo has tested foods to determine which foods react adversely with which blood types. By following the Blood Type diet, these foods and the offending lectins may be avoided, and health may be improved.
Blood Type O
Blood type O is the oldest blood group in human history. It is also believed that the maximum number of people in the world today have Type O blood. People with O type blood have the hardiest digestive systems. Of course, it also depends on individual disposition and circumstance, but at a general level, they have hardy systems. These are considered good for digesting meat, poultry, and fish.
People with O blood group need animal protein to maintain good health, along with vegetables and fruits. However, the emphasis is on animal protein. Seafood and sea kelp are a good source of iodine which is an essential requirement for O type people as these people tend to suffer from a sluggish metabolism and low thyroid. A diet well supplemented with iodine rich foods are good for them.
Type O’s should clear their kitchen of anything that contains white or wheat flour, corn starch, partially-hydrogenated oil, coffee, coconut, dairy, ham, pork and bacon, vegetables soaked in vinegar e.g. pickles, legumes, beans, and grains, avocados, brazil nuts and oranges.
O blood type people benefit from exercise – lots of it. Aerobics, jogging, power walking, and weight training is best for them. The more they work out, the better they will be health wise. Get moving, burn the fat, and sweat it out and get rid of stress and depression while you are at it too.
Blood Type A
Blood type A has low levels of hydrochloric acid and alkaline phosphatase but high levels of a digestive enzyme called intestinal disaccharide, which means animal protein is not easily digested, but carbohydrates are. This also indicates that type A best suits a vegetarian diet. Food eaten must be pure, organic, and as fresh as possible.
Type A people have sensitive immune systems. Stress is very typical for blood type A. They have higher levels of the stress hormone cortisol, which makes them react to stressful situations. Symptoms that could occur due to stress are disturbed sleep patterns and brain fog during the day.
To ensure the cortisol levels are under control, do the following – limit sugar, alcohol and caffeine intake, don’t skip meals, especially breakfast, and eat smaller, more frequent meals.
Best foods for Blood Type A include lots of vegetables, deep ocean seafood, legumes (beans and peas), nuts and seeds.
Blood Type B
Blood Type B people have higher cortisol levels. Stressful situations result in higher levels of cortisol being released in the system. Excess cortisol makes people react to stress in a negative manner, which leads to further psychological imbalance. Type B people are also quite prone to infections of the sinus, urinary tract, E.Coli, and influenza.
Overall, people with blood type B type are known to be sturdy. They can usually resist most of the present day lifestyle diseases like cancer and heart troubles. If they follow the required diet and ensure a balanced lifestyle, most people with blood type B can live long healthy lives.
B blood type people can break down fats easily. They have high levels of the bone strengthening enzyme called intestinal alkaline phosphotase. However, they have insulin issues too, so foods with high glucose content should be eaten only in moderation.
Grapefruit and guava are good sources of beneficial lycopenes, while dried apricots are an excellent snack. Fish and seafood are good sources of protein, and kidney and navy beans are good because they do not have lectins like other beans and legumes.
Foods that work well for B type people include green vegetables, deep sea fish, dairy and eggs, rice milk, rice bran, rice flour, millet, oats, onions, artichokes, parsnip, olive oil, flaxseed oil, grapes, figs, and dates can be eaten in moderation and goat meat, lamb, turkey, venison.
The B blood type digestive system is tolerant, which means it can handle both animal and vegetable carbohydrates and proteins. Their immune system is strong is capable of resisting most chronic degenerative illnesses. The system works best when one does moderate exercises like swimming, tennis, hiking, and cycling.
Blood Type AB
This blood group is rare, i.e. it is found among less than 5% of the world’s population. AB is a direct result of the intermingling of blood types A and B. This particular aspect gives it chameleon-like features. The people who have AB blood group can pick up both A and B type features.
AB people have a tendency to internalize their emotions, which causes more harm than good. Exercise then becomes the best way to keep stress at bay and maintain an emotional balance. A combination of aerobic and low impact like tai chi or yoga in a 3:2 ratio will give the best results.
AB blood types have a mixed inheritance in their digestive abilities too. Type A has low stomach acid issues, which make it difficult for them to handle meat. However, AB has the characteristics of type A low acid and type B adaptability.
Foods most beneficial for AB blood type are seafood such as cod grouper, hake, mackeral, mahi-mahi, monkfish, tuna, trout. Meat and poultry such as lamb, rabbit and turkey. Nuts such as peanuts and walnuts. Vegetables such as broccoli, beets, cauliflower, celery, cucumber, green leafy vegetable.