One meal a day or four: what a study actually measured in cats
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
"One meal a day keeps a cat fuller": the line travelled widely after a Canadian study was published. Read it, and a more mixed picture appears, with results pointing both ways. Our portioning guidance is gathered in the cat food section.
Contents · 5 sections
Eight cats, twenty-one days, identical calories
Camara, Verbrugghe, Cargo-Froom and colleagues published in 2020, in PLOS ONE, an open-access study comparing two strictly isocaloric feeding patterns in adult cats. Eight cats only, young and healthy, around 4.3 kg, followed for twenty-one days either a single meal with 90 minutes of access, or four 20-minute meals spread through the day.
What was measured
- No difference in body weight between the two patterns, and none in energy expenditure — fasted or after eating.
- A lower fasted respiratory quotient on the single meal (p = 0.004), indicating increased fat oxidation. But no difference in the postprandial respiratory quotient (p = 0.912).
- A higher plasma amino acid response on the single meal, across several amino acids at 60 minutes and total essential amino acids at 60 and 240 minutes.
- Hormones pulling in different directions: GIP and GLP-1 lower on four meals, ghrelin and insulin higher on the single meal.
- Higher physical activity on four meals (total activity p = 0.048, daytime activity p = 0.007); the single-meal cats were, conversely, more active at night.
What was not measured — and it changes the reading
Satiety was never observed directly: no feeding behaviour test, no measure of begging. It is inferred from the hormone profile. Lean body mass was not measured either; the authors state explicitly that neither whole-body protein synthesis nor its biomarkers were evaluated. And insulin and the HOMA-IR index were significantly higher at 60 and 120 minutes on the single meal — a point rarely repeated. Eight young, healthy, normal-weight cats over three weeks does not transfer as such to an obese, diabetic or elderly cat.
What to do in practice
The study names no winner. It suggests that at equal calories, the pattern alters metabolism and activity rhythm without changing weight. The reasonable choice for a household cat: split meals if the animal begs or vomits after eating too fast, as covered in our comparison of free feeding, and watch the total amount rather than the number of servings. In multi-cat homes, portion control starts with the equipment, as shown in our article on the pet-separating feeder.
Frequently asked questions
Does one meal a day make a cat lose weight?
Not in this study: at equal calories, weight did not move over three weeks under either pattern.
Do cats naturally eat several small meals?
That is the pattern described in hunting cats, but this study does not test it: it compares two imposed protocols in a research setting.
Are four meals workable for someone at work?
It implies a programmable feeder. Since the study shows no weight advantage, that is not an essential purchase. 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 colonne (from €152.99)
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.
