The line you quoted:

> Those receiving weekly injections of semaglutide lost, on average, 14.9% of their body weight after 16 months of treatment; those who received a placebo lost 2.4% on average.

Doesn't really have anything to do with the question about lifestyle changes. That question basically centers around whether the 14.9% weight loss occurred independent of or as a result of lifestyle changes downstream from the semaglutide.