Testing was repeated such that all subjects received both semaglutide and vehicle, with at least two consecutive training days (including water and alcohol) with performance above 80%)
The GLP-1 and GIP arms meanwhile drive insulin secretion and gastric-emptying delay in different tissues and on different timescales (PMID 39515565, PMID 41785010)
The glucagon component of retatrutide is particularly active in people with metabolic dysfunction
Add GIP, like tirzepatide does, and the reduction goes further
Clinical and translational studies have reported substantial changes in body weight and adipose tissue mass when the compound is evaluated in controlled trials and metabolic models, suggesting that multi-receptor agonism can alter energy balance through integrated endocrine signaling mechanisms [2][3][5]
While all three medications aim to support weight loss, they work somewhat differently