BPC 157: Miracle Healing Peptide or Hidden Danger? Breakthrough Peptide Healing: How BPC 157 & TB 500 Support Rapid Recovery at Iowa IV Iowa IV FDA Is Expected to Lift Restriction on Peptides, Heeding RFK Jr.'s Wishes The New York Times Peptides are often well tolerated, but they can still cause temporary reactions while the body adapts. Some commonly reported effects include: BPC 157 headaches, nausea, increased appetite TB 500