More than 1 in 2 British GLP-1 users are cutting back on fast food

Healthier foods are seeing an increase in consumption.

More than one in two British consumers who are using weight loss drugs are eating less fast food, a report by YouGov revealed.

The effects of GLP-1 have the most impact on snacking, with 64% of users finding themselves snacking less. 39% are also drinking less alcohol, whilst 33% are drinking less fizzy drinks. Meanwhile, 14% have said they also started drinking less coffee.

Nearly two in five said they are eating more vegetables, whilst 23% have started to consume more vitamins. 21% said they eat more fish and seafood, whilst 13% have said they increased taking supplements.

This has also affected spending habits. Spending on takeaways dropped from an average of £46 per week to £31 per week. GLP-1 users have also cut down on groceries, with weekly spend falling from £101 to £87.

Globally, GLP-1 users spend 61% less on takeout/delivery and 63% less on restaurants. 31% also reduced their grocery spending. This is an estimated $55b decrease in food and beverage spending, according to KPMG.

However, this does not mean that consumers are ditching restaurants entirely. Global market research and technology firm Circana published in January 2026 reveals that GLP-1 users decrease the average number of items ordered per trip by 1%. 

This aligns with a broader trend, as 35% of all restaurant consumers reported ordering smaller portion sizes in October for health-related reasons. This shift suggests that restaurants can encourage add-on purchases by offering smaller, more tailored portion options.