Also, even if he meant non-surgical interventions, it should be “which can reliably cause long-term weight loss”—there are people who lose weight by dieting, and a few of them don’t even gain it back.
Also, even if he meant non-surgical interventions, it should be “which can reliably cause long-term weight loss”—there are people who lose weight by dieting, and a few of them don’t even gain it back.