1. Improve gastrointestinal function: black buckwheat tea is rich in dietary fiber and rutin-like components to help promote gastrointestinal peristalsis, relieve constipation and other gastrointestinal problems.

2. Reduce blood lipids and blood sugar: black buckwheat tea in the buckwheat theophylline and other ingredients can reduce the body's blood lipids and blood glucose levels, for people suffering from hyperlipidemia, hyperglycemia and diabetes and other chronic diseases have a certain health effects.

3. Promote metabolism: black buckwheat tea can promote the body's metabolism, to help people consume excess fat, reduce body weight.

4. Relieve fatigue: black buckwheat tea is rich in bioactive substances, can improve the body's functional state, relieve the body's fatigue.

5. Antioxidant, anti-aging: black buckwheat tea is rich in flavonoids, montelukast and other substances, has a good antioxidant and anti-aging effect.

6. Heat and fire: black buckwheat tea has a heat detoxification, fire and thirst, etc., suitable for drinking during the summer heat.

Contraindications:

1. Black buckwheat tea contains nut proteins and other allergens, for those with allergies, drink with caution.

2. Black buckwheat tea in the theophylline content is high, high blood pressure, heart disease, neurasthenia, insomnia and other people do not drink too much.

3. Pregnant women and children and other special groups should consult a doctor before drinking.