White Mulberry Leaf In GlycoAid

The Research Behind White Mulberry Leaf

The mechanism is not in question and DNJ is genuinely a competitive inhibitor of that enzyme. The human evidence is where it thins out: several small trials have found reductions in post-meal glucose spikes, but the studies are small, short and not consistently replicated. This is a good example of a strong mechanism with a modest evidence base, and the two are easily confused.

What Dose The Studies Actually Used

Trials have used mulberry leaf extract standardised for DNJ content, typically in the range of several hundred milligrams to a gram of extract, taken with meals. Timing matters more here than with most ingredients, because an enzyme inhibitor has to be present when the enzyme is working.

White Mulberry Leaf: Cautions Worth Knowing

Well tolerated in the doses studied. Because the mechanism leaves more undigested carbohydrate in the gut, some people report bloating or gas, which is the same mechanism that makes prescription alpha-glucosidase inhibitors uncomfortable for some patients. The usual glucose medication caution applies.

What White Mulberry Leaf Is Not

White mulberry leaf is not the mulberry fruit, and neither is related to the goji berry despite both being marketed as superfruits. The leaf carries the DNJ; the fruit does not carry it in any meaningful quantity. A product listing mulberry without specifying leaf is worth reading twice.

Finding White Mulberry Leaf Outside A Capsule

Mulberry leaf tea is drunk in Japan, Korea and China and is easy to buy. The important shopping note is that the leaf and the fruit are different products: DNJ is concentrated in the leaf and not in the berry, so a supplement listing only mulberry is ambiguous in a way that matters. Look for the word leaf, and for a DNJ standardisation figure where one is offered.