[aptimpropriety]

FWIW, the dreams of the 'end-all pill' fall short for a wide variety of reasons - one of the major ones being volume of ingredients necessary. For many recommended doses of vitamins / minerals, you simply need more than the total weight of those ingredients than can fit into a pill. The magnitude of this depends upon which supplementation schools of thought you believe in, but there is a limit to how much you can cram into a pill you can swallow.

[pyre]

  Fry: I can't swallow that.
  Prof. Farnsworth: Good news! It's a suppository!