People with AB blood can only donate blood to other people with AB blood, but they can receive any type of blood in return. Luckily, only 2% of Americans have this type of blood.ĪB is the rarest of all bloods. If a pregnant mother has B- blood, there is a risk of death for the baby if it carries a positive blood type. There is actually a recommended diet based on blood types, and there is a lot of tasty variety for those with B+ blood.īlood type B- is not only rare, but it can be dangerous in certain situations. People with A+ blood should stick to a low-fat diet to stay healthy.Ī- blood is a rare blood type for many races in the United States.ī+ is a fairly average blood type, found more in Asians than any other race. Even so, two parents with A+ blood can give birth to a child with an O type blood. An interesting fact is that 47% of African Americans have O+ blood.Ī+ blood is a fairly common blood type in the United States. The group of O blood is the oldest blood on Earth and dates back to 40,000 BC. Why does blood type matter The 4 main blood types are A, B, AB, and O.
While O- is the least common blood type, O+ is the most common. For instance, a rare blood type called RO is 10 times more common in black people than it is in white people. While anyone can receive O-, people with O- blood can only receive O- blood.Only 7% of the world's population carries O- blood.This makes it the most sought-after blood. When this blood is donated, anyone can receive it. O Negative is known as the universal blood type.
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