Purple tea is a rare type of tea, also known as milkvetch tea. It has many health benefits, as well as some contraindications to be aware of.

Efficacy:

1. Improve immunity: Purple tea leaves are rich in polyphenols and anthocyanins. These compounds help improve immunity.

2. Improve sleep quality: The camellia polyphenols in purple tea can reduce the secretion of cortisol and help improve sleep quality.

3. Antioxidant: The polyphenols and anthocyanins in purple tea have very strong antioxidant effects and can maintain good health.

4. Protect the heart: The polyphenols and anthocyanins in purple tea also help lower cholesterol levels to protect the heart.

Taboos:

1. Pregnant women should drink with caution: The caffeine content in purple tea is high, and pregnant women need to be careful before drinking it.

2. Digestive system problems: Any tea containing caffeine will irritate the stomach and intestines, and purple tea is no exception. Therefore, it is not suitable for people with poor digestive systems.

3. Drug effects: The caffeine in purple tea can affect the absorption of certain drugs, so you need to pay attention to interactions with drugs.