Herbalists have traditionally used the husks of the Black Walnut (Juglans nigra) as a nutritional aid for the intestines. American Indian tribes have been known to use it as a laxative. Black Walnut oxygenates the blood to help kill parasites; aids in expelling tapeworms, pinworms and ringworms and has been shown to be effective in the treatment of candida albicans. It is able to burn up excessive toxins and fatty materials, while it helps balance sugar levels. Black Walnut has also been very successful in the treatment of Valley fever.