Sun 'cuts prostate cancer risk'

Sunlight can reduce a man's risk of prostate cancer, a study suggests.

Researchers from three US centres found men exposed to a high amount of sun had half the risk of the disease than those exposed to a low amount.

Writing in Cancer Research, they suggest that the protection was a result of the body's manufacture of vitamin D after sun exposure.

But men were warned not to sunbathe excessively because of the risk of developing skin cancer.

Vitamin D is also found in foods such as oily fish.