In the hot summer, eating some frozen sweet watermelon is a great enjoyment of life. Many people don't like to cut watermelons, especially at home. Everything is half, and it is best to dig with a spoon. Watermelon is very high in calories for thin people who want to gain weight. Half a watermelon is equal to three bowls of rice, but you can't eat more, because watermelon is cold and easy to hurt your stomach. Modern nutrition requires the human body to eat a small amount of various foods every day. Cucumber and bitter gourd are low in fat, protein and carbohydrate, and high in dietary fiber, which is really beneficial to lose weight, but as cold foods, people with spleen deficiency and stomach cold are not suitable for raw food. Nowadays, many young women take "whole melons and fruits" as their last dinner every day, and some even eat half a watermelon. Some people transfer fruit to breakfast, a peach+a bag of milk. In their view, melons and fruits are rich in cellulose and almost free of fat and protein, so they can be safely eaten. Xin Li, the first five-star personal trainer in China and a personal nutritionist at Jade Bird Fitness Club, believes that half a watermelon (pulp weighs about four or five kilograms) generates about 680 calories, which is equivalent to three bowls of rice. Fruits are not all low in calories, such as cantaloupe, watermelon, pineapple, papaya and other fruits, which have high sugar content. If you eat too much, it will easily turn into fat accumulation, which will not only make it difficult to lose weight, but also may "gain weight".