FDA says walnuts are drugs.
fda.gov
"The Food and Drug Administration (FDA) has reviewed the label for your "Diamond of California Shelled Walnuts" products and your website at www.diamondnuts.com. Based on our review, we have concluded that your walnut products are in violation of the Federal Food, Drug, and Cosmetic Act (the Act) and the applicable regulations in Title 21, Code of Federal Regulations (21 CFR)."