My grocery spending has fallen significantly since I started ADHD medication. Both lisdexamfetamine and methylphenidate absolutely zeroed my appetite. When I walk around a grocery store I'm no longer tempted by anything I didn't actively go in to buy. This is a huge shift from my pre-medication days.
Also, I can't find the comparison in the study to spending by non-Ozempic households. Is it possible that they decreased their spending during the time frame too, for other economic reasons? All this to say is that I think the story is more complex than the headline indicates.