In general, I'm in favor of getting my nutrients from the food I'm eating (like the fabulous tomato-and-mozzarella salad I had for lunch, which had a flavr nom nom nom), but sometimes it's harder than others. Even though the modern American can get tomatoes in the middle of winter these days (not to mention in early May), there's something in my mind that tells me I shouldn't eat tomatoes when there's snow on the ground, if for no other reason than because such things have to be shipped an awfully long way to get to me in Pennsylvania in December. In such cases, things like vitamin supplements can be really handy. But I hate going to the vitamin stores, because there's generally someone behind the counter who gives me the hairy eyeball for my lack of well-defined muscles.
Hence, when I give up on strictly Natural Vitality (it's a brand of supplements, I just kind of liked the phrase) and go for the kind that comes in pill form, once again the Internet is my savior. The more variety the better, too, because the popular brands of vitamin sold in grocery stores and the like often lack useful things (folic acid, anyone?) or have something I don't really need--vitamin K is fat soluble, people, you don't need it every day. So sites like Choice Nutritionals are quite handy for my vitamin shopping on those occasions when I need to do any. Now if I could just get my prescription meds that way too...