Puzzle feeders: cats prefer the bowl, and it has been measured
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
Many animals prefer to work for their food rather than find it already served — a laboratory phenomenon called contrafreeloading. Cats resist the rule. Our feeding guidance is gathered in the cat food section.
Contents · 5 sections
The design: both options side by side
Delgado, Han and Bain published in 2022, in Animal Cognition, an experiment run in the homes of 17 neutered indoor cats (see the study). Each cat was observed over ten 30-minute sessions, with a puzzle feeder and a similarly sized tray holding the same food, freely accessible, offered at the same time. Every session was filmed and each cat wore an activity monitor.
- Cats ate significantly more from the tray than from the puzzle: t(16) = 6.77; p < 0.001.
- Eight cats out of seventeen consumed less than 10% of the food offered to them in the puzzle; two took nothing from it at all.
- No cat ate more from the puzzle than from the tray.
- Daily activity level predicted nothing (r = −0.09; p = 0.75). The best predictor of what a cat took from the puzzle was what it took from the tray (r = 0.56; p = 0.02): the biggest eaters were the ones putting in the effort.
What the result does not say
This is the decisive point, because a quick reading would be costly. The study measures a preference under simultaneous free choice. It tests neither weight loss, nor idiopathic cystitis, nor boredom, nor behaviour problems — that is, precisely the benefits documented by the review from Dantas, Delgado, Johnson and Buffington published in 2016 in the Journal of Feline Medicine and Surgery (see the study). Delgado co-authored both: that a cat does not choose effort does not mean it draws no benefit from it.
Add the sample limits: seventeen cats, all neutered and strictly indoors, a single puzzle model, a single food, thirty-minute sessions. Nothing says an easier puzzle or a longer session would give the same result. And the line "the cat is the only species that refuses to work for its food", long repeated, no longer holds: Rothkoff, Feng and Byosiere showed in 2024, in Scientific Reports, that dogs are willing to work for food but do not prefer it either.
The right way to introduce a puzzle feeder
- Never as a free choice next to a full bowl. That is the exact setup of the study, and the cat simply eats beside it without ever "getting the hang of it".
- Offer it before the meal, to a hungry cat, since the only cats that put in the effort were those eating most in absolute terms.
- Put only a fraction of the ration in it — 10 to 20% to begin with, the rest served normally — then increase over several weeks if the cat follows.
- No need to stockpile models. Prior experience with puzzle feeders had no measurable effect: if your cat is one of the refusers, splitting the ration across several bowls placed around the home achieves comparable spacing for nothing.
- Never let a cat skip meals in the name of enrichment: in cats, a sudden drop in food intake is a reason to see a vet, not a learning phase.
Should puzzle feeders be abandoned?
No — but stop expecting the cat to choose them. They remain useful for slowing a fast eater, occupying an indoor cat or spacing out a ration, provided they are introduced gradually rather than substituted overnight. Our comparisons cover the formats: food puzzles, snuffle mats and the slow feeder bowl for a cat that eats too fast.
Frequently asked questions
Is my cat lazy?
That is not the authors' conclusion; they point out instead that the result sits awkwardly with a predator that hunts spontaneously. The mechanism remains an open puzzle.
How long should the feeder be left out?
For the length of a session, then put it away. Left permanently beside a bowl, it becomes an ornament.
Does this apply to wet food?
The study used dry food. Feeders designed for wet food exist but were not tested here. Find all our guides on the cat hub.
In our shop, for this use: Raised-edge silicone feeding mat for cats (€25.90) · the whole shop
See it at Le Félin, a shop from the same family (zero commission): Arbre à chat original (from €139.99)
This guide is part of Planète Pets’s Cats universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.
