This is an old saying, a common saying and the secret of keeping in good health. One of the dishes, especially Chinese cabbage The basic meaning is that when eating Chinese cabbage, don't just eat those tender leaves, but also eat coarse side dishes at the same time, so as to achieve the effect of matching the thickness, thus increasing the nutrition needed by the human body.

The context of this old saying is: rice has chaff to eat, and vegetables help to eat. Men never leave leeks, and women never leave lotus roots. Green carrots, raw grams and cooked supplements. If you are not full, you will not lie down when you are full.