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Published by the iPharma Research Team Medically reviewed by PCCA- and NHIA-certified compounding pharmacists with 27+ years of clinical experience in sterile compounding, GLP-1 therapy, and personalized medicine Last reviewed July 2026 Educational information only

Once your GI symptoms stabilize, you can gradually reintroduce more fiber

These options carry different considerations regarding cost, quality assurance, and personal responsibility

Each has different implications for patient access and cost

The simplest way to keep them straight is by counting receptors: semaglutide acts on one (GLP-1), tirzepatide on two (GLP-1 and GIP), and retatrutide on three (GLP-1, GIP, and glucagon)