FDA to weigh easing limits on unproven peptides favored by RFK Jr. and other MAHA figures The Washington Post Sources: U.S. Food and Drug Administration (FDA) Compounding and the FDA (503A & 503B guidance) FDA warning letters on unapproved peptide products National Institutes of Health (NIH) PubMed FDA Warns Companies Illegally Marketing Products Containing 7 OH OncoDaily Peptides may soon be easier to get amid RFK Jr.'s push, but experts warn of risks