My personal view is that we don't get enough Vitamin D in this country - particularly if we cover up and avoid sunbathing.
Yes, I agree, we do have low levels of Vitamin D, and we haven't had a particularly good summer to top it up in the natural way. It's striking the balance between getting enough Vit D and avoiding too much sun.
DD has recommended something called proflavanol. I may try some, because I was just getting over a cold and ear infection and now have been sneezing again this evening [grr]
I do take a good multivitamin sometimes but must admit I haven't lately - perhaps two colds in succession is the result!
Teetime I think the vitamins for men would be fine for women in the short-term at least if you wanted to take them - they may vary a bit but perhaps it is just like the painkillers for joint pain, period pain, headache etc! However, some are just a waste of money.
People who have coeliac disease (undiagnosed) may not have been absorbing nutrients from food; after diagnosis the villi in the intestine could well grow back eventually and nutrient absorption should return to normal but supplements and vitamins could help as levels would have been depleted in the body.