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Vitamin B is important for boosting cell metabolism. This vitamin can be found naturally through many leafy green vegetables, but Dr. Oz says a supplement may be necessary. "Most of us don't get anything near what we need, in part because our food supply has changed and we're not eating what we should eat. So taking vitamin B in a supplement makes sense."
Vitamin D is important for osteoporosis, and deficiency may be the cause of some forms of cancer, as Dr. Oz noted earlier.
Interested in more about important vitamins and supplements? Check out Dr. Oz and Dr. Roizen's recommendations based on your age.