Within the last twenty years evidence has begun to accumulate which supports the specific health benefits of a vegetarian diet. For example in the late 1990’s, researchers found that the isothiocyanates in cruciferous vegetables (broccoli, cauliflower) protect against and possibly treat prostate and other cancers. The blood glucose-lowering effect of raw onions has been known for some time and is generally attributed to the presence of several sulfur-containing sulfoxides.
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