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What are the functions and benefits of oolong tea?

Sep 13, 2025 Source: Cainiu Health
Dr. Yu Yongchao
Introduction
Under normal circumstances, oolong tea, as a semi-fermented tea, has various effects and benefits, including assisting in regulating blood lipids, refreshing the mind, aiding digestion, nourishing the skin, and replenishing body fluids. When drinking oolong tea, it is important to note that caffeine may affect sleep, so it should be avoided 2–3 hours before bedtime. Drinking it on an empty stomach may irritate the gastric mucosa; therefore, individuals with weak gastrointestinal function should consume it cautiously.

Generally speaking, as a semi-fermented tea, oolong tea offers various benefits, including assisting in regulating blood lipids, refreshing the mind, aiding digestion, nourishing the skin, and hydrating the body. A detailed analysis is as follows:

1. Assisting in regulating blood lipids: Oolong tea contains abundant tea polyphenols and polysaccharides that help inhibit fat absorption and promote fat metabolism, thus contributing to lipid regulation. It is suitable for individuals who consume high-fat diets to drink in moderation, helping maintain stable lipid levels.

2. Refreshing the mind: The caffeine in oolong tea can stimulate the central nervous system, enhance brain activity, alleviate fatigue, and improve concentration. Drinking it during breaks at work or study can help restore energy and increase focus, making it suitable for situations requiring alertness.

3. Aiding digestion: Oolong tea is mild in nature and contains various digestive enzymes that promote gastrointestinal motility and accelerate food digestion and absorption, alleviating discomfort caused by indigestion, such as abdominal fullness and poor appetite. Drinking a moderate amount half an hour after meals can effectively relieve gastrointestinal discomfort.

4. Nourishing the skin: The polyphenols in oolong tea have antioxidant properties that reduce free radical damage to skin cells, delaying skin aging. Meanwhile, vitamin C in the tea promotes collagen synthesis, helping improve dullness and dryness of the skin.

5. Hydrating the body: Oolong tea is brewed with water and can replenish daily fluid needs, improving bodily hydration. Its unique aroma and taste can also enhance the willingness to drink water, especially suitable for those who dislike drinking plain water.

When drinking oolong tea, it is important to note that caffeine may affect sleep, so it should be avoided 2-3 hours before bedtime. Drinking it on an empty stomach may irritate the gastric mucosa, so those with weak digestive systems should be cautious. Additionally, consumption should be moderated to avoid excessive caffeine intake, which may cause discomfort.

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