That's not true. People in the following four situations are not suitable for drinking black tea. 1. Vegetarian: It is easy to lack nutrients such as vitamin B, iron and calcium. Tea ingredients will hinder the absorption of these vitamins, so vegetarians should drink tea in moderation. 2. People who are too thin, malnourished and lack of protein: Tea can remove fat and hinder the body's absorption of protein. Therefore, people who are too thin, malnourished and lack of protein should drink tea in moderation; On the contrary, drinking tea is definitely an economical and effective way for people who want to lose weight. 3. Patients with special diseases: For example, patients with hypoglycemia, tea can quickly lower blood sugar in a short time, so patients with fasting hypoglycemia should avoid drinking tea. 4, tea time: it should be chosen about two hours before and after meals, and this is suitable for drinking tea on an empty stomach. Drink tea immediately after a meal. Tannic acid in tea can make protein in food solidify into particles, which is not easy to be digested and absorbed by human stomach.

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