glp-1 gip muscle preservation therapies 2025 Does retatrutide cause muscle loss? What the research actually shows GLP-1 medications work. But up

About one in eight American adults say theyve used a GLP-1 receptor agonist medication like Ozempic or Wegovy at some point, making this a very popular drug class

In a study out of Australia published in the International Journal of Sports Nutrition and Exercise Metabolism, for instance, 36 obese women took either L-carnitine or a placebo and completed eight weeks of aerobic training

Zhuang R, Ge X, Han L, et al

Key Report Takeaways By drug, semaglutide led with 51.35% of the Latin America GLP-1 agonists market share in 2025, while tirzepatide is projected to record the fastest 12.12% CAGR through 2031

Though it might not be as fast-acting or effective as tretinoin, it provides similar benefits without the intensity or higher risk of ittiration