Mulberry leaves are soaked in water for tea. Mulberry leaves contain an alkaloid called 1- deoxynomycin (DNJ), which only exists in mulberry leaves, and the content is about100 mg/100 g. This alkaloid is an α -glucosidase inhibitor. Mulberry leaves not only contain DNJ, but also are rich in γ -aminobutyric acid and phytol, which is 3-4 times that of green tea. Has the effects of losing weight, caring skin and lowering blood sugar.

Mulberry leaf water is suitable for people with impaired glucose tolerance, mild diabetes, type 2 diabetes and high-risk diabetes, 1 diabetes adjuvant therapy, diabetes complicated with hyperlipidemia, diabetic neuropathy and complications, cardiovascular and cerebrovascular diseases, and has more health care functions for normal people. Mulberry leaf water can promote metabolism, eliminate fatigue and replenish vitality.