Scared with the high prevalence rate of cancer among men? Your worries may be put to rest sooner than later. Garlic and onions could help prevent men developing prostate cancer, researchers have said. Men who eat the most vegetables have a 50% lower risk of having prostate cancer than those who eat the least. This was found in a survey by the US National Cancer Institute. The benefit can be credited to allium present in garlic and onions. Allium is a sulphur-based compound, responsible for the characteristic smell in onion and garlic. So, to prevent prostate cancer, eat up lots of garlic and onion men!!