I think we all lack some of the minerals and nutrients and need a little help in that department, which is why I take several supplements...when I remember.
Here's what I take:
-women's multi vitamin with metabolism support
-B complex (my happy pill)
-magnesium (keeps my headaches away and helps with muscle recovery)
I take Vitamin D when the time changes and I never see the sun.
I also take Lysine when I have ulcers in my mouth.
I'm supposed to be taking Fish Oil for my sky-high cholesterol, but I haven't gotten in the habit of that one at all.
I'm probably a little too pill happy, but these things seem to work for the purposes I need.