Chewing gum (black wheat, green arrow, xylitol). Of course, fruit vinegar is also a good choice. For example, fermented apples contain pectin, which can help reduce fat content. Friends who need to lose weight, drink a few spoonfuls of apple vinegar before each meal, it is easy to burn excess fat. Of course, eat some low-calorie foods. For example, tomatoes are naturally low-calorie sweets, while chef Fang's noodles are low-calorie and high-fiber, which does not affect health.