1. Help to lose weight: Oolong tea contains catechins, which can accelerate metabolism and promote fat burning.

2. Reducing blood lipid: Tea polyphenols in oolong tea can reduce blood lipid, which is good for patients with hyperlipidemia.

3. Protect teeth: Fluorine in oolong tea can protect teeth and prevent dental caries.

4. Antioxidant: Tea polyphenols and catechins in oolong tea have antioxidant effects, which can reduce the damage of free radicals and prevent aging.

Disadvantages of oolong tea:

1. Caffeine: Oolong tea contains caffeine, which can lead to insomnia, palpitation and other adverse reactions if consumed excessively.

2. Different production methods: The composition, taste and effect of oolong tea with different production methods are different, so it is necessary to choose the suitable variety according to your own situation.

3. Not suitable for drinking on an empty stomach: Oolong tea has certain stimulating effect, and drinking on an empty stomach is easy to stimulate gastric mucosa, leading to stomach discomfort.

4. Affect the absorption of nutrition: Tea polyphenols and catechins in oolong tea will affect the absorption of minerals such as iron and calcium, which will easily lead to insufficient nutrition.