1, studies show that: if you eat some fruit or drink 1 to 2 cups of juice 20 minutes to 40 minutes before meals, you can prevent obesity caused by too many meals.

(1), fruit is a raw food, eat raw food and then into the cooked food, the body will not produce high white blood cell reaction, is conducive to the protection of the body's immune system, thereby enhancing the ability to prevent disease and cancer. Eating fruit after meals is not such a protective effect.

(2), eat fruit after eating a full meal, containing fructose can not enter the intestinal tract in a timely manner, so that the fermentation in the stomach, producing organic acids, causing bloating and diarrhea, so you need to wait for an hour after the meal and then eat fruit.

(3) Fruit or fruit juice is rich in fructose and glucose, which can be quickly absorbed by the body to increase blood glucose concentration and reduce appetite. The crude fiber within the fruit can also give the stomach a sense of fullness.

(4) Eating fruits before meals can significantly reduce the need for fatty foods, which indirectly prevents the negative consequences of excessive fat accumulation in the body.

(5), however, many fruits such as persimmons, hawthorn, almonds, pineapple, etc. can not be eaten on an empty stomach.

(6), in order to lose weight, when consuming fruits before meals, it is best to choose fruits that are not too acidic and astringent, such as apples, pears, bananas, grapes, watermelon, melon and so on.