A study found that households in the US reduce their grocery spending by an average of 5.3% within six months of starting a GLP-1 medication, with higher-income households experiencing a steeper drop of over 8%. The reduction in spending is mainly due to decreased purchases of ultra-processed and calorie-dense foods. The study analyzed data from tens of thousands of US households and found that the effects of the medication on food spending persist for at least a year, but become smaller over time. The findings have implications for food manufacturers, restaurants, and retailers, as well as policymakers and public health experts.