Cabbage, brussels sprouts, cauliflower, and broccoli have high content of indoles and isothiocyanates. These components have protective properties against colon cancer, breast cancer, skin cancer and other types of cancers. Broccoli sprouts has immensely high sulforaphane than the matured broccolis, which is a cancer-protective substance. Furthermore, as said before vegetables being great anti-oxidants also alleviates the chances of fatal diseases like cancers. Vegetables naturally have high levels of water structurally, this is the reason why they are generally fat free and low in calories. You can be rest assured of both your weight and health once you start with vegetable rich diet. The more you consume vegetables, the more is the water intake that flushes out waste products from your body.