Lingnan is located in the subtropical zone, with long days and short nights, so Cantonese people have developed the habit of drinking tea and eating snacks. Even so, the word "midnight snack" does not come from Lingnan. "Dream of Liang Lu" in the Song Dynasty says: "On New Year's Eve, the interior office presents a fruit box for supper, and all kinds of exquisite fruits are clustered (gathered) in the box: seasonal fruits, preserves, preserves, etc." "Snack" has been nicknamed "Snack" since ancient times. The note "snacks" in Ci Yuan says: "Cantonese night market is also called snacks." This statement is not appropriate. Snacks include porridge, noodles and sugar water. Cantonese people enjoy these foods in after-dinner entertainment and call them "snacks", while "night market restaurants" are places to eat snacks. Strictly speaking, the earliest "snack" means dinner. It is not advisable to eat supper after 10 in the evening.

The best time to eat supper is 9 ~ 10 in the evening, and you can fall asleep after eating supper 1 ~ 2 hours. The fasting time is from 10 night to 6 am the next day to ensure the renewal and repair of gastric mucosal cells.

Try to conform to the principle of balanced diet. Usually, the energy distribution of three meals a day is: breakfast accounts for 20%, lunch accounts for 40% and dinner accounts for 40%. People who eat midnight snacks should reduce their dinner intake. Usually, midnight snack accounts for about 1/4 of dinner, about 200 calories. Choose foods rich in protein, B vitamins, vitamin C and minerals, which should be easy to digest. Snack is about 1 cup of milk+10g oatmeal+10g fruit, 1 whole wheat bread+1 cup of fruit yogurt, 1 bowl of hot soup noodles+100g fruit,/kloc.