The blood type nutrition is still a controversy for people in the medical field and according to experts it hasn’t proven medical research. The theory is that blood type affects how your body breaks down and deals with the various foods. By following blood type nutrition it is claimed that you'll feel healthier, lower your risk of certain diseases and lose weight. Until this day, you’ll be surprised that some people don’t even know there own blood type or the possible relationship it may have to nutrition, exercise, our personality, and vulnerability to diseases. There is still skepticism among the medical field of experts stating that there is no correlation between blood type and nutrition or how it can prevent illnesses such as heart disease. My purpose of this article is to bring awareness and information to the readers. Observe and see what type of changes or affects it may benefit you if you plan to try it out.
In 1950, William C. Boyd published a book called “Genetics and the races of man: An introduction to modern physical anthropology”. His background is an immunochemist and blood type anthropologist. He explained how the genetic analysis of blood groups and divided the population into 13 geographically distinct races. Peter D'Adamo who is a naturopathic doctor in Stanford, CT. grouped those thirteen races together by blood group. Peter continued the work from his father James D'Adamo, who began the scientific research on this. People became more interested after the release of Peter D’Adamo’s "Eat Right 4 Your Type" years ago in which it was a best seller.
Over the millennium our blood types have evolved swaying in many directions with the various diets out there and our nutrition should be adjusted more carefully. We can virtually learn a lot from our ancestors or animals. Instinctively they knew what was good for them and survived in the demographics they lived. For example, felines such as lions, tigers, cheetahs, and leopards are meat eaters and you wouldn’t see them feeding on carbohydrates. Other animals are vegetarian and instinctively they will not eat meat. I agree with this and this is no coincidence. Animals have a sixth sense or protective mechanism, as well humans have this ability if we were to listen to our senses. We have evolved and become domesticated that we’ve lost touch with our instincts towards our eating habits. We can learn a lot from animals and they instinctively eat what is good for them. Most animals of any particular species live around the same age because they know what foods they should eat instinctively that is good for their nutrition maximizing their life span. Animals also have a very low risk of heart disease and they don’t die by their predators but from natural causes such as old age.
The blood type nutrition asserts that lectins, from the foods we eat, can cause disruptions in our blood stream and be the source of diseases. A few experts have suggested if we eat foods which are "good" for our blood type, we can avoid ill health. So what are lectins and what does it do? A lectin is a protein substance found in the foods binding glycoproteins and glycolipds forming agglutination. This means tiny molecules found in foods that cause blood and other body tissues to stick to one another. So if eating a food that has protein lectins and it isn’t compatible with your blood type antigen will result in a counter attack on your organ and system. It will then begin to agglutinate cells in those areas. When food is not compatible, the cells in that targeted area will clump and be destroyed. But there is protection from lectins, and our immune system will fight off 95% of the lectins in our food. However, the remaining 5% may cause problems if the blood type is reactive.

Hi m3po,

Blood type nutrition is the diet designed by Dr. Peter D'Adamo. He says, that your blood group will determine your likelihood of suffering from certain diseases like diabetes, cancer, cardiac diseases etc. your blood type will also decide your ability to digest certain foods. He says that in order to prevent the health problems, you need to follow diet appropriate for your blood type.

To find out your blood type nutrition, first get a blood test done. Usually, not many are aware about their blood type. Once you find out your blood type, you can select the right nutrition for you. E.g. if your blood type is O, your diet should primarily focus on meats along with veggies and fruits but low levels of carbohydrates. For A blood group, meats should form a miniscule portion, with a major emphasis of carbohydrates. B blood group people can eat most of the foods except wheat products. AB group people have the best and worst of both A and B groups. So they should reduce meat and wheat products. You can read more about the foods at http://www.runtheplanet.com/trainingracing/nutrition/bloodtype.asp

However the legitimacy of this diet has not been proved yet. The debate is still on. So till it is not proved, continue to eat healthy and exercise well.