After the release of that damaging NIH study, some people associated with The Biggest Loser told the New York Post that the show secretly encouraged them to use weight loss drugs. Specifically, a “source close to production” claimed that trainer Bob Harper and an assistant gave contestants Adderall and “yellow jackets.” The former is a prescription drug approved by the FDA to treat ADHD and narcolepsy, while the latter contains the extract of ephedra, which has been used to promote weight loss … and was straight-up banned by the FDA back in 2004.
Regarding the accusations, an NBC producer issued a blanket denial of any and all drug pushing. “The safety and well-being of our contestants is, and always has been, paramount,” the statement read. “We prohibit the use of any illegal substances, in addition to the many other rules and procedures of the show that are designed to ensure safety.”