During this later phase, ongoing loss may average about 12 lb per month , which can feel slow but adds up over time
This list breaks down five programs that stand out in 2026, what each one does well, and where they fall short, starting with the option we think offers the strongest overall value
Multiple mechanisms contribute
Eli Lilly $LLY stock rose 4.4% in premarket trading on Monday after full Phase 3 trial results for its experimental weight loss drug retatrutide showed participants on the highest dose losing an average of 28.3% of their body weight over 80 weeks.
Setting realistic expectations early can also prevent unnecessary discontinuation
Recombinant human GLP-1 inhibits protein kinase C (PKC)-, but increases protein kinase A (PKA), which reduces oxidative stress in both glomeruli and tubules (Yin et al., 2019)