Vitamin D has come up a bit here. Shouldn't fish (eggs and mushrooms are a fair source too) and sunlight be more than enough? For those who are sun deprived (I remember one winter here where it was cloudy for about 2 months straight and people got so squirrely that some took charters to fly above the clouds) but what about full spectrum lamps?
I agree that hunter-gatherers didn't take a one-a-day. I take them as I'm not so sure my diet is diverse enough right now, and I'm not a counter, calorie, macro, or micro nutrient wise, but I plan on eliminating them at some point.