Tomatoes not the cure for prostate cancer

Eating lycopene-rich tomatoes offers no protection against prostate cancer, according to the latest research, contrary to the findings of some past studies.

In fact, the researchers found an association between beta carotene, an antioxidant related to lycopene, and an increased risk of aggressive prostate cancer.

Dr Ulrike Peters of the Fred Hutchinson Cancer Research Center in Seattle says the finding is “disappointing” as lycopene might have offered a simple and inexpensive way to lower prostate cancer risk for men.

Unexpectedly, the investigators noted an association between an increased risk of aggressive prostate cancer, defined as disease that has spread beyond the prostate, and higher intake of beta carotene, another antioxidant found in many vegetables and commonly used as a dietary supplement.

Although this observation “may be due to chance”, Dr Peters adds, “beta carotene is already known to increase the risk of lung cancer and cardiovascular disease in smokers”.

“While it would be counter-productive to advise people against eating carrots and leafy vegetables, I would say to be cautious about taking beta carotene supplements, particularly at high doses, and consult a physician,” she says.