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Blood Type Diet
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Here is what you need to know.  Dr. Peter J. D'Adamo, a naturopathic physician, created the Blood Type Diet in 1996. His theory is an attempt to try and explain why no diet seems to work for everyone. To learn more from the horses mouth go to his website at www.dadamo.com with 1,500 references on blood type research.

In Eat Right For Your Blood Type: The Individualized Diet Solution to Staying Healthy, Living Longer and Achieving Your Ideal Weight, he writes that our blood types originated in prehistoric times. Type O came from people who were hunter/gatherers and had acidic stomachs for digesting meat. Type A originated between 25,000 and 15,000 B.C. in farmers who had a lower stomach acid level for digesting grains and legumes. Type B originated between 10,000 and 15,000 B.C in nomads who ate the meat and dairy of cattle, goats, and sheep. Type AB was an amalgam of A and B.

He further indicates that modern people benefit greatly from eating the foods according to their blood types. Here is how his breakdown works.
  • Dairy is healthful for Type B's but not Type A or O. 
  • Red meat should be eaten by Type O's but not by Type A's.
  • Caffeine is good for Type A's and AB's, but not for Type O's. (This diet plan has met with some resistance from Type O vegetarians and Type A meat eaters in particular)
  • Some foods outside their blood type might prove to be beneficial in improving their strength and cholesterol levels. The ideal diet, D'Adamo notes, includes herbs and regular exercise, based on blood type.
  • Types A and AB do better with yoga, brisk walking or swimming, Types O and B benefit from vigorous exercise.
  • He concludes that yoga is useful for all four types, but types O and B should combine it with more high-intensity exercise such as aerobics, martial arts, cycling or jogging. 
there are always critics and this is no exception.  They argue that there is no scientific evidence that supports D'Adamo's claims. They also point out that there has never been a controlled/double blind study published  on blood type diets nor has there been a study subject to peer review, which is the litmus test for all science. Critics claim that D'Adamo's theory is based solely on his institution and anecdotal stories, with very little supporting data.

This theory does have its roots in the study of lectins, proteins found on the surface of certain foods that can cause various molecules and some types of cells to stick together. He suggested that lectin proteins are similar enough to one type of blood antigen to cause the antigens of another blood type to produce antibodies to attack and agglutinate (glue together), clumping the blood. D'Adamo claims that this contributes to irritable bowel syndrome, cirrhosis of the liver, and kidney failure depending on the food protein and the blood type.

Most people do not eat according to their blood type and, according to D'Adamo, are eating the wrong foods for weight loss and total health. If his theory was correct, however, practically everyone would experience a build up of agglutinated red cells after meals and quickly get clogging in the heart, lungs, kidneys, brain, eyes, and other essential organs. If D'Amano is correct then these organs would be damaged beyond repair, resulting in death in millions of people. Pathologists and other medical scientists have never reported this happening in humans.

So as always I issue a word of caution when considering this diet.  This does not mean that Blood Type dieting is total crap, it simply means that there is a lot more to learn about it before critics will buy-in and theory becomes fact.

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5/15/2012 08:53:14 pm

I actually added your blog to my favorites and will look forward for more updates. Great Job, Keep it up.

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8/14/2013 03:08:07 am

Polyclonal antibody that features immunoglobin molecules are extracted with the host animal being inoculated an antigen of the particular kind.

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