1. Do not eat anything for 3 days before crossing the valley, only drink at least 800ml of raw water every day, and drink slowly in small cups. After 3 days, if you can continue, you can eat some fruits and vegetables (mainly apples, tomatoes and cucumbers), but not more than100g each time. Don't eat anything, but you must drink more than 800ml of water.

Second, you can eat a certain amount of porridge, vegetable soup, peanuts, vegetables, fruits and other foods in the formal stage. Mainly used for people who are not suitable for completely avoiding grain, such as obese people. Incomplete crossing the valley can be used as a means to improve physical fitness and can be done at home under the proper guidance of teachers. The specific method of porridge is: use 20-50g of rice (or corn, wheat, barley, etc. ) and add some vegetables to cook porridge, 1 bowl/meal, 3 meals/day. Porridge can not only keep fit by eating less, but also prolong life. It is a good natural way to avoid cereal.

Third, at the end of the diet, you can't overeat all at once. Eat liquid food in the early stage, and slowly increase your food intake in the later stage.

In fact, this is dieting to lose weight. If you don't want to go on a diet to lose weight, just eat a slimming fruit every day, which will make you lose weight easily and won't rebound.