White mulberry is an herb. The powdered leaves are most commonly used for medicine. A compound called 1-deoxynojirimycin (DNJ) found in mulberry leaves is thought to inhibit sugar digestion so that most sugar is not absorbed into the bloodstream and is instead excreted. Studies suggest DNJ helps prevent spikes in blood sugar.
Mulberries have significantly high amounts of phenolic flavonoid phytochemicals called anthocyanins. Scientific studies have shown that consumption of berries have potential health effects against aging and neurological diseases, inflammation, diabetes, and bacterial infections.