Medical weight loss might be on the verge of a further revolution. For starters, people will likely have the option of taking a new class of medications that seem to have fewer bothersome side effects, such as nausea—which affects about half the people on Ozempic and similar drugs. Those now-familiar medications target a pathway involving the appetite-regulating hormone GLP-1; the new ones target cell receptors for a different hormone, amylin. AstraZeneca, Eli Lilly, Zealand Pharma, and, of