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Vitamin A May Slash Melanoma Risk, Especially in Women
Vitamin A supplements couldِ reduce theِ risk ofِ developing theِ deadly skin cancer melanoma, according toِ a newِ study.
The results show thatِ people takingِ vitamin A wereِ 60 percent lessِ likely toِ develop melanoma overِ the six-year study.
People whoِ hadِ taken theِ vitamin, butِ weren’t currentlyِ taking it, didِ not gain anyِ protective effect.
The reduced risk was more pronounced in women than men.
This isِ promising evidence thatِ inِ addition toِ sun protection, there’sِ anotherِ option thatِ canِ help prevent melanoma, saidِ Dr.
Mary Gail Mercurio, a dermatologist atِ the University ofِ Rochester Medical Center, whoِ wasِ notِ involved withِ theِ study.
Vitamin A isِ foundِ in foods suchِ asِ sweet potato, carrots, spinach, milk, eggs andِ liver.
The study appears today (March 1) in the Journal of Investigative Dermatology.
Genetics could increase melanoma risk
Melanoma isِ the sixth leading causeِ of cancer inِ the U.S., according toِ theِ American Cancer Society.
About 76,000 cases ofِ melanomas willِ beِ diagnosed thisِ year, based onِ recent estimates.
In theِ study, researchers examined aboutِ 69,000 men andِ women, andِ afterِ aboutِ six years, 566 hadِ developed melanoma.
There are limits to how much vitamin A a person can consume, she said.
The recommended daily amount ofِ vitamin A isِ 700 micrograms forِ adult women andِ 900 micrograms forِ adult men, according toِ theِ National Institutes ofِ Health.
Taking moreِ than 2,800 micrograms ofِ vitamin A couldِ lead toِ toxic symptoms inِ adults.
Reducing sunlight exposure hasِ long beenِ recommended toِ reduce theِ risk ofِ melanoma.
There isِ alsoِ a strong genetic component, Mercurio said.
Although sheِ saidِ the study’s findings wereِ compelling, sheِ cautioned it’sِ not clear howِ much vitamin A mightِ bring a benefit.