"There are two vitamins that really are as good as tomatoes and should have a country named after them," Dr. Roizen says. "They are folate, which decreases arterial aging, decreases blood pressure and decreases cancer rate. [It will say] either folate or folic, they're the same, and you want 800 micrograms a day. And vitamin D: you want 400 international units a day. Those two together decrease cancer rates substantially."

Dr. Roizen also says that calcium and magnesium are crucial vitamin supplements. Even in a daily multivitamin, there is not enough calcium. Most women can only absorb 600 milligrams at a time, though you need 1,200 milligrams everyday. Therefore, it is important to have another 600 milligrams of calcium at least 6 hours after the first.