Feeding an Overweight Dog

Feeding an overweight dog

Nearly half of dogs are overweight and most owners cannot see it. How to check, why cutting the normal food in half is the wrong fix, and what works over the months it takes.

A slim dog sitting by a lake

Check first

Overweight begins at 10% above ideal weight, obese at 20%. Feel for the ribs under gentle pressure; if you cannot, the dog is carrying too much. The figure check and the 10% rule. Your vet can give a body condition score and rule out thyroid and adrenal causes.

Why halving the bowl fails

Cutting the normal food in half cuts the protein, vitamins and minerals in half too, and leaves a hungry dog that begs and scavenges. A weight-loss food is lower in energy but higher in protein and fibre, so the portion stays full, muscle is kept, and the dog feels fed.

The plan

Weigh, do not scoop

Feed to the target weight, not the current one, in grams on a kitchen scale.

Treats out, or out of the ration

Treats are the easiest calories to remove. Use pieces of the daily ration for training, or a low-calorie care snack counted in.

More activity, gradually

Longer and more frequent walks, built up slowly in a dog carrying a lot.

Weigh in every one to two weeks

Aim for 1 to 2% of body weight a week. That means months, not weeks, and the check-ins are what keep it going. A 2015 study found the diet is on average cost-neutral once scraps stop.

After neutering

Metabolism and behaviour change straight away; feeding usually does not. The two years after neutering are the highest-risk window for weight gain, so switch to a lighter recipe or reduce the ration at the time, and weigh monthly.

The recipes

VET Adipositas is the dietetic diet for dogs with a lot to lose, fed on your vet's recommendation; we stock it in dry and wet.

See your vet before starting if
  • your dog is very overweight, elderly, or has joint or heart problems
  • weight has changed quickly without a change in feeding
  • your dog drinks or urinates more than usual, or has a pot belly with thin legs

Based on "Diet management strategies" by Cornelia Günther, veterinarian, Happy Dog veterinary team.

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