Fasting test in the morning is not good for the stomach. Losing weight can't hurt the stomach, because the stomach is the main organ of human body. It is important to protect it. If you want to lose weight, you should arrange three meals a day reasonably. As the saying goes, don't eat fat when you are sick. It is ok to eat lean meat. Don't eat too much at every meal, just be 80% full. At first, you may feel full and uncomfortable. Stick to it for a while and get used to it. Some people go to slimming centers and beauty salons to lose weight, which is not desirable, because their way is to control their food intake and let you use their products at a high price. As far as I know, some slimming centers don't let you eat at night, and only eat a small amount of fruit. They can only make you hungry, spend a lot of money, and ultimately can't solve any problems, and they are harmful to your health. Because many people are eager to lose weight, I was willing to spend money to lose weight at first, so I gave up after a long time. On the one hand, I spent too much money a year. On the other hand, although their methods have some effects, people with brains will think that although you have lost some weight during this period, the effect is because of the change of diet, so there is no need to spend money to lose weight. The best way is to strengthen physical exercise and change diet and food intake. I wish you health and happiness!