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大量的科学研究证明,每天吃大量的蔬菜水果能降低人们患癌癥的危险性,那多少才算是大量呢?美国农业部与卫生部门提出每日吃5份蔬菜水果以增进健康的行动计划,如每天早餐时可以喝一杯纯果汁,每天两次正餐时分别吃100～200g蔬菜,餐后再吃100～200g水果。蔬菜水果中所含纤维素、半纤维素、木质素和果膠食人类食物纤维的主要来源,促进肠蠕动,有益于健康。通常深绿色的蔬菜维生素C的含量较浅色蔬菜高,叶菜中含量较瓜菜高。
A large number of scientific studies have shown that eating a large number of fruits and vegetables daily can reduce the risk of cancer and how much can be regarded as a large quantity? The U.S. Department of Agriculture and the Ministry of Health put forward five daily actions to eat vegetables and fruits for health promotion plan, Such as daily breakfast can drink a cup of pure fruit juice, eat twice daily twice a day to eat 100 ~ 200g of vegetables, eat 100 ~ 200g of fruit after a meal. Vegetables, fruits and vegetables contained in cellulose, hemicellulose, lignin and pectin, the main source of human dietary fiber, promote bowel movements, good for health. Usually dark green vegetable vitamin C content is higher than light-colored vegetables, leafy vegetables content higher than vegetables.