Yes, people should eat sixty to seventy percent full. One is to reduce the pressure on the stomach and reduce the workload on the auxiliary digestive system such as liver, spleen and gallbladder; The second is to reduce the production of carbohydrates and slow down the protection of metabolic system.
Imagine that the human digestive system is a "wonderful super factory", and many wonderful changes are closely related to what, how and how much we eat.