Contrary to earlier belief, scientists have found that vegetables, irrespective of their other health benefits, vegetables are not effective on prostate cancer and its progression in men.

In a two-year study published in JAMA, researchers asked a group of prostate cancer patients to eat at least seven daily servings of fruits and vegetables. They were also asked to eat less red meat and less fat.

The researchers did not find any significant improvement in prostate cancer progression in these men. Though improved diet has been shown to be helpful in previous epidemiological studies, unfortunately that was not the case. The reason, researchers say, could be because cancer is a very complex disease and therefore the answer for stopping the progression of prostate cancer is not as simple as eating more vegetables.

Lots of other research in prostate and other cancers has shown that men who are more robust and healthier in general tolerate their treatment much better.