Can Safe Sun Exposure Actually Help Prevent Cancer?

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Many scientists advocate for limited sun exposure, suggesting that brief periods of sun without sunscreen, approximately 15 minutes a few times a week, can be beneficial for health. Dr. Edward Giovannucci, a Harvard professor, presented research indicating that vitamin D may prevent significantly more deaths than it causes from skin cancer, estimating a ratio of 30 lives saved for every death linked to skin cancer. Additionally, anecdotal evidence exists of individuals claiming to have cured their cancer through high doses of vitamin D, highlighting ongoing discussions about the potential health benefits of this vitamin.
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...No one is suggesting that people fry on a beach. But many scientists believe that "safe sun" - 15 minutes or so a few times a week without sunscreen - is not only possible but helpful to health.

One is Dr. Edward Giovannucci, a Harvard University professor of medicine and nutrition who laid out his case in a keynote lecture at a recent American Association for Cancer Research meeting in Anaheim, Calif.

His research suggests that vitamin D might help prevent 30 deaths for each one caused by skin cancer. [continued]
http://apnews.myway.com/article/20050521/D8A7MPFG0.html
 
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I don't remember what I was watching.. but I think it was a show on discovery. The man claimed to cure his cancer by taking higher than normal doses of vitamin D..
 

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