1, through exercise, the muscle mass will increase to a certain extent, but the muscle density is higher than that of fat, so it will cause the situation of looking thin but gaining weight. This is why under the same weight, some people look slim and curvy, while others look bloated.

2, obviously not enough intake, even if you lose weight, you must ensure that the daily diet meets the requirements of the body's basic metabolism.

When the intake of calories and nutrients is insufficient, the body will enter a state of famine, that is, reduce metabolism in an attempt to maintain normal body functions.

During the period of reducing fat, it is recommended to consume 300-500 calories less than the calories consumed every day for a period of time. At the same time, we should pay attention to the richness of food, ensure the diversification of nutrition and reduce fat while ensuring health.

Don't be afraid to gain a little muscle. The lines and curves of a good figure are all supported by muscles.