Drinking tea immediately after meals can easily lead to complex reactions between tea polyphenols in tea and iron and protein in food, thus affecting the absorption of iron and protein by human body. Drinking tea on an empty stomach before meals will dilute gastric juice and affect its secretion, which is not conducive to food digestion. The correct way is to drink tea at least half an hour after meals, preferably 1 hour later.

It is not advisable to drink tea before and after meals, otherwise it will dilute gastric juice and affect food digestion. Drinking tea on an empty stomach may even cause palpitation, headache, dizziness, upset and other "drunken tea" phenomena, and even cause gastric mucosal inflammation in severe cases. The correct way is: drink tea one hour after meals, chew slowly and drink water two or three times.

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