Labrador: the POMC gene mutation behind its appetite, and the role of the slow-feeder bowl
A Labrador that seems "always hungry," begs relentlessly and empties its bowl in seconds doesn't necessarily have a training problem: part of the breed carries a genetic mutation that directly affects the feeling of fullness. Find all our health guidance in the dog care and grooming section.
What the landmark study shows
Raffan and colleagues published a genetic study on Labradors in 2016 in Cell Metabolism identifying a deletion in the POMC gene, involved in regulating appetite and energy expenditure (study on Google Scholar). Dogs carrying this mutation, found in about a quarter of the Labradors studied and even more among the breed's guide dogs, showed significantly stronger food motivation and higher weight at equivalent food intake. The authors note that these dogs don't eat more out of "greed": their physiology registers fullness later, which makes them especially vulnerable to weight gain in an environment where food is freely available.
Adjusting how an affected dog is fed
- A precisely measured ration, rather than eyeballed, accounting for every treat given throughout the day.
- A slower eating pace, since a dog that empties its bowl in seconds registers the first signals of fullness less well.
- Regular weigh-ins, to catch gradual weight gain before it becomes established.
To slow down a food-driven eater without adding frustration, our guide to the slow-feeder dog bowl covers the most effective designs. For neutered dogs, whose energy needs drop, our food for neutered dogs comparison rounds out this vigilance. Find the full breed profile on the Labrador page and browse all our guides on the dog hub.
Frequently asked questions
Do all Labradors carry this mutation?
No, it affects only part of the breed; a genetic test can tell whether a given dog is a carrier, though keeping a close eye on portions is worthwhile for every Labrador.
Is a carrier dog bound to gain weight?
No, strict control of portions and physical activity keeps a genetically predisposed dog at a healthy weight.
Should a vet be consulted at the first signs of weight gain?
Yes, adjusting the ration early is far simpler than reversing weight gain once it has become established.
This guide is part of Planète Pets’s Dogs universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.