RESEARCH
GLP-1
Aug 2026

GLP-1 users are cutting delivery before fast food, new Australian research finds

The fast food occasion is proving resilient among Australians taking GLP-1s, but new research from Ideally shows where the pressure is starting to appear.

Almost two thirds (63%) of Australian GLP-1 users say their typical fast food spend has stayed the same, while four in ten haven’t changed what they order.

Among those changing their habits, the shift is towards higher-protein items, smaller portions and simpler orders.
Delivery and impulse occasions are under pressure

Delivery is seeing the biggest pullback, with 28% of GLP-1 users ordering it less often. Drive-through impulse visits follow at 22%, while 18% have cut back on late-night orders.

Planned occasions are proving more resilient. Just 9% have reduced weekend family meals and 6% have cut back on workday lunches.

The pattern suggests convenience alone may be becoming less powerful as an eating trigger. More spontaneous occasions are falling away faster, while meals attached to established routines are holding up.

Smaller appetites are changing the order

The classic fast food meal deal could also come under pressure.

When asked which parts of a typical fast food order they would be least willing to give up, 58% of GLP-1 users chose the main item. Sides and drinks proved more expendable.

That creates an opportunity to rethink the structure of the meal around the part consumers value most, particularly as smaller appetites make larger bundles harder to justify.

Consumers want better ingredients and smaller formats

Better ingredients top the list of improvements GLP-1 users want from fast food brands, selected by 24%.

Half-size meals at a lower price and high-protein mains follow at 15% each.

For brands, smaller formats will need to deliver on value as well as portion size. Consumers are showing interest in eating less, but they still expect the price to reflect what they’re getting.

The category is already moving in this direction. Smaller formats and protein-forward menu items increasingly feature across major QSR menus, aligning with the broader shift towards more selective eating.

“Grocery baskets were already shifting towards protein and lower sugar before GLP-1s arrived. What we’re seeing now is that trend accelerating. This is an existing shift gathering pace.”
Lucy Travaglia
Head of Research at Ideally

As appetites shrink, fast food still has a place. The opportunity for brands is to make that occasion work harder through better ingredients, flexible portions and orders designed around what consumers value most.

INSIDE THE REPORT
  • The occasions under pressure, as delivery and impulse visits decline while planned meals hold
  • Why the classic meal deal needs to flex, with 58% calling the main item non-negotiable
  • Why better ingredients top the improvement wishlist at 24%
  • How smaller portions and pricing are changing the value equation
  • Where QSR brands can respond and how to test emerging opportunities