1. Enhance immunity: Oolong tea contains a variety of natural plant compounds and antioxidants, which helps to enhance human immunity and reduce the risk of illness.

2. Promote metabolism: Sugar-free oolong tea drinks contain caffeine and various amino acids. Stimulating the central nervous system and muscle tissue can accelerate the metabolic process, consume energy and help to lose weight.

3. beauty beauty: Oolong tea contains a variety of natural antioxidants and vitamin C, which helps to prevent skin aging, reduce wrinkles, maintain skin elasticity and luster, and has a good beauty beauty effect.

4. Improve digestion: Sugar-free oolong tea beverage contains a variety of digestive enzymes and vitamin B, which helps to improve gastrointestinal digestive function, relieve symptoms such as indigestion and stomachache, and increase appetite.

5. Lowering blood sugar: Oolong tea contains a variety of bioactive substances, which helps to regulate blood sugar level, reduce blood sugar concentration and prevent metabolic diseases such as diabetes.