People have to distinguish between fat-soluble and water-soluble vitamins, as well. The latter generally ‘wash out’; the former generally build-up.
However, even some of the ‘wash out’ vitamins - the ‘B’ complex, especially - need to be taken in certain ratios to one another, or complications can arise. (This is why you will see bottles of B vitamins in the drugstore calling themselves ‘balanced’.)
Minerals can be complicated, too.
But none of it is ‘rocket science’ - you just have to find good, recent books and studies on the subject.
(Not a doctor - never played one on TV.)
Anything wrong with one a days?