On the subject of vitamin pills, many years ago I just wasn't feeling that well. Nothing really wrong, just fatigue, odd little skin complaints, lots of colds, that sort of thing. I did a huge amount of reading on vitamins and supplements, and on the basis that maybe my diet wasn't that perfect, worked out what I thought might help. Since then I've taken pretty much the same things, basically multivitamins and a few other things I thought I might need. Don't know if they do anything, and maybe it's a placebo effect, or maybe something else, but I seem to have been super-healthy ever since - loads of energy, rarely catch anything, and haven't seen a doctor except for aviation medicals for years and years. So I'll keep taking the tablets, no matter what anyone says.