Take your daily multivitamin.

The Journal of the American Medical Association now encourages all adults to take a daily multivitamin. Multivitamins may help prevent a number of chronic diseases, including some cancers, osteoporosis, and heart disease. When you buy multivitamins, always check the expiration date. Check for the letters “USP” on the label. This mark tells you that the U.S. Pharmacopeia has declared that the vitamin actually contains the ingredients and the amounts stated on the label and that the tablets will dissolve effectively. For the best absorption, take your multivitamin with a meal. Talk to your doctor about vitamins and calcium supplements.