Average of 250 to 300 grams, and the actual intake of the elderly only vegetables, dark Aquatica total less than 1 / 3. The Chinese Nutrition Society recommended ideal daily diet should include at least 400 grams of vegetables. According to the World Cancer Research Fund recommendations, eat plenty of vegetables, fruits can prevent many common cancers. Vegetables and fruits are considered anti-cancer and antioxidant ingredients on:Carotene, lycopene, folic acid, lutein, etc., and these in yellow, green vegetables high levels. In canola, cabbage, broccoli, fennel, chestnut and other dark green leafy vegetables in Levin, vitamin K, carotene, vitamin B2, calcium nutrient lutein and, more often than eggplant, melon, light-colored vegetables such as high levels of several times or even ten times, which is the elderly most likely to lack of nutrients.