Now Foods, Black Walnut Hulls, 500 mg, 100 CapsulesHerbal Supplement Juglans nigra A Dietary Supplement Botanicals Herbs Family Owned Since 1968 GMP Quality Assured Black Walnut Hulls come from the immature fruit of the Black Walnut Tree (Juglans nigra). References to the use of Black Walnut Hulls dates back to the Ancient Greeks and Romans, and they have been used by many cultures throughout history as an herbal tonic. The Black Walnut Tree is indigenous to the Middle East, but is currently grown in