This is quite important news as visceral fat is actually the most dangerous kind of fat: even in lean adults, those with higher amounts of visceral fat are much more at risk for metabolic disorders and insulin resistance [1]. And you often can't tell if you have visceral fat by looking, since it's deep under your belly muscles, and a seemingly-skinny person can have unhealthy amounts of visceral fat. [2] If Ozempic is specifically increasing the metabolic rate of visceral fat beyond simply making caloric restriction easy (which it also does), that implies a pretty broad range of health improvements beyond just simple weight loss — especially since previous treatments were unable to target visceral fat preferentially to subcutaneous fat, despite visceral fat being more dangerous. [3]
1: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC419497/