He shouldnt just start taking supplemental iron. Iron can reach toxic levels very quickly, especially in male's. Generally most males are not deficient in iron (study done in newengland journal of medicine). He may have non-iron related anemia which is causing the brusing, but in any case, he needs to see a doc if it is that big a problem. Vitamin B-12 is good for anemia and is almost impossible to reach toxic levels since it is water soluble, so you could take a lot of it.