Scientists have suggested that broccoli extract helps protect the skin against ultraviolet rays and reduces the risk of skin cancer.

A study by the Johns Hopkins University, whose results have been published in the journal Proceedings of the National Academy of Science, the topical application of the sulforaphane, a chemical found in broccoli sprouts, prevents the redness and inflammation of the skin caused by exposure to UV radiation.

Sulforaphane strengthens the body's defense system against the four major causes of cancer (oxygen radicals, DNA damaging chemicals, inflammation and radiation) and other chronic degenerative diseases by increasing the activities of special enzymes.

The study that was conducted on animals and volunteer humans, revealed that using the extract for three days prior to UV exposure, reduced the UV-induced redness and swelling by 37 percent.

The researchers, however, say that sulforaphane cannot be used as a substitute for sunscreens as it needs several hours or even longer to begin working. According to scientists, the broccoli found in grocery stores, is not a reliable source of sulforaphane.

PKH/RE