Why does drinking red bean and coix seed tea cause dry mouth?

Oct 25, 2022 Source: Cainiu Health
Disease description:

I've been drinking red bean and coix seed tea frequently recently, and over time I've started experiencing dry mouth. Why does this happen? Why does drinking red bean and coix seed tea cause dry mouth?

Doctor's answer (1)
Dr. Ding Yu
Drinking red bean and coix seed tea may cause dry mouth due to its dampness-removing effect. It is recommended that patients moderately replenish sufficient water to avoid internal heat. Coix seed tea is a cooling beverage and is not recommended for long-term consumption. Women should avoid drinking it during menstruation to prevent menstrual irregularities. Dry tongue could also result from other causes, such as an unhealthy diet or excessive internal heat.