The study reported that participants "regained two-thirds of their prior weight loss." A meaningful share of the loss is muscle: across body-composition studies, roughly a quarter of the weight lost is lean mass (muscle), with the rest fat (Karakasis and colleagues, network meta-analysis, Metabolism , 2024), and the honest range landing between about 15% and 40% (Hierholzer and colleagues, review, 2026)
Keep a symptom diary documenting when tiredness occurs, its severity, and any associated factors (meals, medication timing, activities)
Ruan, Y
SGLT-2 inhibitors: the gap seems to be leveling off
Research and Development Despite these challenges, the benefits of GLP-1 receptor agonistssuch as improved blood sugar control and weight managementare substantial, and research continues to focus on improving these therapies: Improving Formulations: Ongoing research aims to develop new formulations that might reduce side effects or offer easier methods of administration