Body fat and thin mainly depends on calorie intake and consumption. Without intake and function, liver fat will provide energy, and body protein will also provide energy.

Paying attention to scientific methods to lose weight is definitely unscientific and unhealthy. The first condition for us to pursue body shape is health. Health comes first. So we should lose weight scientifically.

Scientific weight loss means reasonable diet, scientific training and adequate sleep. A reasonable diet is not to eat less, but to eat more meals, not to feel hungry, to eat less oil and to eat more coarse grains.