Source: UAB News / GoodRx (March 2026)

As these drugs have become mainstream, the focus has shifted to the long-term physical changes that occur during rapid weight loss.

• Sarcopenia (Muscle Loss): A significant concern in 2026 is that up to 40% of weight lost on GLP-1s can be lean muscle mass rather than fat. This can lead to weakness and a lower metabolic rate, making weight regain more likely if the drug is stopped.

• Cosmetic Changes: "Ozempic Face" (hollowed, sagging skin) and temporary hair loss (telogen effluvium) are frequently reported. These are not direct toxic effects of the drug but are the body's natural response to rapid caloric deficit and nutrient shifts.

The "Rebound" Effect: New research from the University of Alabama (March 2026) highlights that stopping either the shot or the pill without a maintenance plan leads to rapid weight regain, as the "food noise" (cravings) often returns with increased intensity.