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Vitamin B12 deficiency (E53.8): Documented by laboratory values
Retatrutide is an investigational GLP-1, GIP, and glucagon triple receptor agonist currently in Phase 3 trials
Editorial refresh Practical 2026 note for BPC This update makes BPC more specific by tying semaglutide, tirzepatide, BPC-157, safety signals, bpc, 157 to the page's original clinical, cost, access, or comparison angle
Understanding these potential mechanisms helps clinicians and patients identify strategies to minimise discomfort whilst maintaining adequate B12 intake
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