Black Walnut & Wormwood by Nature's Answer is a dietary drop supplement containing a blend of plant extracts. Black walnut, also known as Juglans Nigra, is a tree found in North America. Its husk contains many active ingredients, including omega-3 fatty acids, sterols, tannins and iodine. Wormwood, also known as Artemisia absinthium, is a perennial shrub-like plant belonging to the Asteraceae family. Some of the active substances found in wormwood are thujone, silica, tannins, flavonoids and inulin. About this item .