Second, the slimming principle of oats: promote digestion, produce satiety, suppress appetite, and finally eliminate fat. Oats have enough dietary fiber, which is easy to produce satiety and is beneficial to the regulation of physiological function and metabolism. When digested, they consume more energy, lower cholesterol and promote gastrointestinal peristalsis. The end result is to lose weight. At the same time, oatmeal is rich in soluble fiber, which is 12 times that of white rice and 3 times that of white bread. The ingested soluble fiber can be mixed with water in human intestine to form colloid, which can prolong the time for human body to absorb food nutrition, keep satiety for a long time, and avoid the desire to eat sweets due to the fluctuation of blood sugar. Oats are rich in insoluble fiber, which can promote intestinal peristalsis, help digestion and prevent constipation. So oats have slimming effect.