University of Cambridge Mar 4 2026 A year after stopping taking weight loss drugs such as Ozempic and Wegovy, people regain, on average, 60% of their lost weight – but beyond this, their weight regain plateaus, with individuals managing to keep off 25% of the weight lost to treatment, say researchers at the University of Cambridge. It isn't clear, however, whether the weight regain constitutes both fat and muscle, or mainly fat. Previous studies have suggested that lean body mass – including