What a plateau actually is
Plateaus reflect the body adapting to a new energy balance. NIH research on metabolic adaptation shows that after weight loss, resting metabolic rate drops by more than the weight loss alone predicts — an adaptation that, over time, brings energy expenditure into equilibrium with reduced intake even on a GLP-1.
The four-step audit
Protein: are you hitting 1.2–1.6 g/kg/day? Resistance training: 2–4 sessions per week? Sleep: 7+ hours consistently? Hydration: 2.5+ L daily? Most "plateaus" resolve when one or two of these are quietly off. The CDC healthy-weight guidance reinforces that consistency across these inputs typically predicts continued response.
Dose adequacy
If behavior is dialed in and you're not yet at the maximum approved dose, dose escalation is a reasonable next step. If you're already at maximum dose, switching agents (semaglutide → tirzepatide, in particular) is the most data-supported move — see SURMOUNT-5 in NEJM.
When the plateau is the new setpoint
Sometimes the body has reached a new equilibrium that the current pharmacology and behavior won't move further. This isn't failure — it's a result. The STEP-4 trial in JAMA confirms that most GLP-1 outcomes literature supports continuing therapy to maintain the loss already achieved, since stopping reliably produces regain.