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These changes occurred through direct effects on adipocyte biology rather than appetite suppression, as research models maintained normal feeding behavior while exhibiting significant reductions in individual adipocyte size

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The mechanism is purely metabolic: increased energy expenditure , suppressed lipogenesis, and elevated NAD+ levels that activate sirtuins (SIRT1, SIRT3), the same longevity-associated enzymes targeted by caloric restriction

"Any medication that sees this rapid adoption warrants close examination, particularly in orthopedics where obesity and surgical intervention often overlap, and when the long-term effects of GLP-1 RA exposure on bone and joint health remain poorly understood," Muaaz Wajahahth, a fourth-year medical student at Michigan State University College of Human Medicine, said

PA may start as subclinical vitamin B12 deficiency