Medicine believes that there are only two healthy ways to lose weight: improving the basic metabolism in the body and controlling the calories of food through exercise. But the effect of losing weight only by exercise is not obvious. Research shows that even if you play tennis for a few hours every day, as long as you drink one or two cans or eat a few biscuits, your hard-earned weight loss results will go up in smoke. Moreover, exercise is often difficult for people to persist. Many exercises make your arms and legs thicker. What's even more annoying is that once you stop exercising, it's easy to rebound and even get fat! Therefore, it is very important to control the calories of food healthily, but this is by no means the same as dieting or eating less, because only by controlling the intake of low calories while ensuring a very comprehensive and balanced nutrition can we really lose weight healthily and will not rebound! And dieting or eating less is impossible!