More research is needed to confirm the results of this early study. And researchers are not yet sure whether a calcium and vitamin D supplement could play a role in helping prevent melanoma in people who've never had the disease. But plenty of other research has shown that vitamin D -- which helps control how quickly cells replicate -- has the potential to keep the growth of many different types of cancer cells in check, including colon, breast, and prostate cancer cells. And if you've had another form of skin cancer, you're at higher risk of developing melanoma -- the deadliest kind -- later in life. So popping a supplement -- in addition to living a sun-smart lifestyle -- may be an easy extra thing to do.
- Break it up. Your body can absorb only so much calcium at once, so divide the Real Age recommended dose (1,000–1,500 milligrams a day) into two or three doses.
- Lose weight. A recent study found that women who lost 15 percent of their body weight could triple the vitamin D levels in their body
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