8 foods to prevent cancer

The US National Cancer Institute study, physical exercise and a nutritious diet with all types of cancer are added. In recent years, 17 of the 170 study, a change in diet to recommend to reduce the risk of cancer. Daily intake of different foods-cancer risk would reduce to some extent. Let us assume that the food list.
 
1) carrots, yellow and orange vegetables.
2) tomatoes, watermelon
3) green vegetables
4) cabbage, cauliflower, turnip
5) Soybean
6) Garlic and onions
7) Vitamin F foods
8) a short wet milk