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Meier JJ, Gethmann A, Gtze O, Gallwitz B, Holst JJ, Schmidt WE, Nauck MA
Why GIP Was Initially Controversial Early studies in people with type 2 diabetes found that their insulin response to GIP was diminished compared to people without diabetes
What started with semaglutide quickly expanded to tirzepatide, and now retatrutide is generating attention as the next potential breakthrough in obesity treatment
These include: Permeability across the intestinal wall Chemical and metabolic stability (how easily they break down) Gastrointestinal (GI) transit time Molecular size, which is often the biggest barrier To overcome these challenges, scientists have developed different strategies for improving oral delivery: Absorption enhancers These substances temporarily make the intestinal barrier more permeable or act as carriers to help peptides cross it