Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

Have you ever wondered if your blood type could influence the foods you should eat? That’s the idea behind the blood type diet, a nutrition theory that claims your ABO blood type (A, B, AB, or O) ...

If fad diets were a sport, the Blood Type Diet would be the comeback kid—re-emerging every few years with a fresh coat of pseudoscientific polish. Once a relic of early-2000s wellness trends, it’s now ...

There are rare blood types beyond the eight most common ones, and researchers have discovered one more that brings the total count to 49. Blood type A(B) is caused by a four gene mutations and was ...