Portion Control and Feeding Schedules for Diabetic Pets

A repeatable feeding routine gives you and your vet something useful to work with. It also makes unexpected changes easier to spot.

Why consistency is the foundation

Your pet's insulin dose is calculated against a consistent daily intake. When the amount or timing shifts, the glucose response shifts with it. Feeding the same food, in the same amount, at the same times, is the single most useful thing you can do for stable control — more useful than agonising over which brand to buy.

Weigh, don't scoop

Scoops are surprisingly inaccurate — the same scoop of the same food can vary considerably depending on how it's filled and how the kibble settles. A basic kitchen scale removes that variability entirely. Weigh each meal, and you remove one source of day-to-day drift in your pet's glucose.

Timing meals with insulin — dogs

Veterinary guidance consistently recommends dogs on insulin are fed twice daily, with meals timed so that glucose absorption coincides with the insulin's peak action. Many owners give the injection while the dog is eating, which makes the routine easier and associates the injection with something positive.

Timing meals with insulin — cats

Cats' post-meal glucose rise lasts longer than dogs', so veterinary guidance indicates meal timing doesn't need to be matched to insulin quite as tightly as it does for dogs. Consistency still matters — same food, same amount, same rough times each day.

What to do if your pet won't eat

See also feeding a diabetic dog and feeding a diabetic cat.

Frequently Asked Questions