Terms often associated with nutrition quackery include miraculous, breakthrough, exclusive, magic, secret, unique, effortless, overnight, instant, and limited-time offer. Be a smart consumer. Exercise judgment and ask questions before buying any nutrition product or program. One question to consider is if results are based on facts and sound science or only personal testimonials. Also, if it sounds too good to be true, it probably is!
Source: Academy of Nutrition and Dietetics