Food for cats with diabetes
Diet plays a genuine part in managing diabetes in cats, and many vets recommend a lower-carbohydrate, higher-protein wet food as part of a management plan — but the right food, and how much of it, needs to come from your vet, not from a label read on its own. This page covers the mechanism and what to look for, not a feeding plan.
Why diet matters for a diabetic cat
Feline diabetes involves the body's ability to regulate blood glucose, and carbohydrate intake directly affects how much glucose enters the bloodstream after a meal. Because cats are obligate carnivores with naturally low carbohydrate needs, many diabetic cats are managed on a diet that leans towards lower carbohydrate and higher protein content than a typical maintenance food.
Wet food is often favoured in this context partly because it tends to carry less carbohydrate than dry food, and partly because the added moisture supports a cat who may be drinking and urinating more than usual, which is a common sign of diabetes.
What to look for on a label, with your vet's guidance
A named meat protein near the top of the ingredients list and a lower carbohydrate content, sometimes described as 'grain-free' though that term alone does not guarantee low carbohydrate, are both worth discussing with your vet as things to look for. The analytical panel's protein and fat figures are a useful starting point for that conversation.
Consistency matters as much as the specific food chosen — feeding the same food at the same times each day makes it far easier for a vet to manage insulin dosing alongside diet, so changes to what or when a diabetic cat eats should always be discussed with your vet first rather than made independently.
Why this needs a vet, not a label
Diabetes management in cats often involves insulin, and food intake is closely tied to how that insulin works in the body. Changing a diabetic cat's diet without your vet's involvement can affect blood glucose control in ways that are genuinely difficult to predict from the outside.
Every diabetic cat is managed a little differently depending on other health conditions, weight, and how well controlled their diabetes currently is, so a food that suits one diabetic cat well is not automatically right for another. Your vet, and sometimes a vet nutritionist, is the right source for the specific plan.
Weight and body condition alongside diet
Being overweight is a significant risk factor for feline diabetes, and weight management is often part of a diabetic cat's ongoing care alongside the food itself. A vet can advise on a target weight and a sensible rate of weight loss if that applies to your cat, since losing weight too quickly can itself cause other health problems.
Portion control matters as much as which specific food is chosen, particularly for a diabetic cat who is also overweight. Free feeding, where food is left out and available all day, is generally discouraged for diabetic cats in favour of measured meals at set times, since it gives far less visibility over exactly how much has been eaten.
Foods formulated for this
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.
Whiskas 1+ Salmon Adult Dry Cat Food
Complete salmon dry food for adult cats in a practical 1.9KG bag
£12.39
Whiskas 1+ Lamb Adult Dry Cat Food
Complete lamb dry food for adult cats in a practical 1.9KG bag
£12.39
Whiskas 1 Tuna Adult Dry Cat Food
Complete tuna dry food for adult cats, offered in several bag sizes
From£3.19
Whiskas Kitten Chicken Dry Cat Food
Complete chicken dry food for kittens, available in several bag sizes
From£3.19
Whiskas 1 Chicken Adult Dry Cat Food
A complete dry food for cats 1+, with chicken present only in the brown kibbles
From£3.19
Whiskas 7+ Senior Cat Complete Dry with Chicken
Complete chicken dry food for senior cats aged 7+ in a 1.9KG bag
£12.39
Whiskas 7+ Chicken Adult Dry Cat Food
Complete chicken dry food for senior cats aged 7+ in an 800G bag
£6.09
Pooch & Mutt Salmon Oil
Scottish salmon oil for dogs, dosed by weight from toy breeds to giants
£13.99
Whiskas 2-12 Months Kitten Complete Dry Food Chicken
Complete chicken dry food for kittens aged 2-12 months in a 7KG bag
£30.15
Whiskas 1+ Adult Cat Complete Dry Food Tuna
Complete tuna dry cat food for adults in a 7KG bag with 30% protein
£30.15
Whiskas 1+ Adult Cat Complete Dry with Chicken
Complete chicken dry cat food for adults in a 7KG bag with 30% protein
£30.15
Burns Adult/Senior Cat Sensitive Grain Free Duck & Potato
Grain-free duck and potato food for cats with digestive or food sensitivities
£16.49
Common questions
- Can I put my diabetic cat on a lower-carbohydrate food myself?
- It is best to make any dietary change through your vet rather than independently, since diet and insulin dosing are closely linked in managing feline diabetes. A change that seems sensible on its own can still affect blood glucose control in ways that need monitoring.
- Is wet food better than dry food for a diabetic cat?
- Wet food is often favoured because it tends to carry less carbohydrate and more moisture than dry food, both of which can help with diabetes management, but the specific choice should still come from your vet based on your cat's overall health and current control.
- Can diet alone manage feline diabetes without insulin?
- In some cases, diet and weight management can meaningfully help, and a small number of diabetic cats achieve remission with the right combination of factors, but this is a decision for your vet to guide based on your cat's specific situation, not something to attempt through food changes alone.
- Should a diabetic cat be fed at set times?
- Often, yes, since consistent feeding times make it easier for a vet to manage insulin dosing alongside meals. Your vet will advise on the specific routine that suits your cat's treatment plan, and it is worth sticking closely to whatever schedule they recommend.
- Does being overweight increase the risk of diabetes in cats?
- Yes, excess weight is a recognised risk factor for feline diabetes, which is part of why weight management is often built into an ongoing care plan for a diabetic cat. Your vet can advise on a sensible target weight and the right pace for reaching it.
Related
Sources
Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.