1. Can help digestion: Pu 'er tea is rich in tea enzymes, which can help break down food and promote digestion.

2. Regulating blood lipids: Tea polyphenols and tea triol in Pu 'er tea can reduce the contents of cholesterol and triacylglycerol and prevent arteriosclerosis.

3. Calm and soothe the nerves: ingredients such as poria acid in Pu 'er tea can make people feel peaceful and relaxed.

4. Antioxidant: Polyphenols in Pu 'er tea have strong antioxidant effect, which can protect cells from free radicals.

5. Improve constipation: Tea polyphenols in Pu 'er tea can promote intestinal peristalsis, thus improving constipation.

Contraindications of Pu 'er tea:

1. Pregnant women and lactating women should be careful to drink or avoid drinking Pu 'er tea.

2. People with endocrine disorders or poor liver and kidney function should drink carefully.

3. Pu 'er tea contains a certain amount of caffeine, and people with cardiovascular or nervous system diseases should drink it in moderation.

4. Patients with active gastric ulcer, severe digestive system diseases, epilepsy and other diseases are not suitable for drinking Pu 'er tea.

5. Pu 'er tea is fermented tea. If it is not properly preserved, all kinds of bacteria and molds will breed in tea, leading to food poisoning. Therefore, you need to buy tea in a regular tea factory or supermarket.