Walnut hulls have significant antioxidant capacity and studies show that it helps inhibit the growth of pathogenic bacteria. They also promote the removal of uric acid from the body. (X)
Some studies suggest they may also help remove heavy metals. (X)
Black walnut hulls contain juglone, which may help to fight bacteria, cancer, and viruses. Juglone helps to inhibit parasites from growing and damages their ability to repair themselves, but is safe for humans.