Senior Instructor Monika Nuffer, PharmD, tells SELF, supplement labels must include the following disclaimer: “This statement has not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.” That statement, however, might differ markedly from what supplements manufacturers claim, she cautions. “Manufacturers might include structural or functional claims to market their product. Sometimes those can be misleading, so keep that in mind if it sounds too good to be true.”