Fat soluble vitamins, once they have been stored in tissues in the body, tend to remain there. This means that if a person takes in too much of a fat soluble vitamin, over time they can have too much of that vitamin present in their body, a potentially dangerous condition called hypervitaminosis (literally, too much vitamin in the body).
If your blood lacks the Rh antigen, it is called Rh-negative. If it has the antigen, it is called Rh-positive. When the mother is Rh-negative and the father is Rh-positive, the fetus can inherit the Rh factor from the father. This makes the fetus Rh-positive too.
Being Rh-negative means you don't have a certain protein (D antigen or the Rh factor) on the surface of your red blood cells.If you do have it, you're Rh-positive.So the terms Rh-negative and Rh-positive are really just terms that further define what type of blood a person has, beyond the general blood type categories of A, B, AB, and O.f you do have it, you're Rh-positive. So the terms Rh-negative and Rh-positive are really just terms that further define what type of blood a person has, beyond the general blood type categories of A, B, AB, and O.