Sugar-free cat food
Most cat food is naturally low in sugar, because cats have no sweet taste receptors and there's no reason for a manufacturer to add sugar for palatability the way some dog treats do. That doesn't mean every product is free of it - some wet food gravies and cheaper treats use glucose syrup or similar ingredients, so the label is worth a quick check rather than assuming.
Why sugar isn't usually the issue with cat food
Cats lack the taste receptor that lets most mammals detect sweetness, which is part of why cat food manufacturers have little reason to add sugar purely to make a recipe more appealing - unlike some dog treats, where sweetness is genuinely used to encourage eating.
That said, sugar and sugar-like ingredients do turn up in some recipes, usually in the sauce or gravy of a wet food rather than the meat content itself, or in cheaper treats aimed more at the owner's idea of a treat than the cat's actual preferences.
What to look for on a label
Check the ingredients list for glucose syrup, sucrose, caramel, or similar terms, particularly in gravy-style wet pouches and in treats. A short ingredients list built around a named meat or fish, with the sauce made mostly of broth or stock rather than a thickened gravy, is generally a good sign if you're trying to avoid added sugars.
Grain-free doesn't automatically mean sugar-free, and neither does a premium price point - the only reliable way to know is to read the actual ingredients list on the pack you're holding rather than relying on marketing claims on the front.
What matters more than sugar for most cats
For the overwhelming majority of cats, sugar isn't the main thing to worry about in their diet - protein quality, overall calorie content relative to their weight, and any known sensitivities matter more day to day. A cat maintaining a healthy weight on a complete, balanced food is doing better than one on an expensive food chosen purely for a sugar-free label.
If your cat has a specific medical reason to avoid sugar, such as diabetes, that's a conversation for your vet about the whole diet rather than a single ingredient to screen out - diabetic cats are often managed with a particular balance of protein and carbohydrate that goes well beyond just checking for added sugar.
Without it, and in stock
Everything below is in stock with us, priced with delivery worked out, and packed and posted by hand in the UK.
Applaws Natural Wet Cat Food Tuna Fillet with Prawn in Broth
Tuna fillet and prawn in broth, with two can sizes to choose from
From£16.69
Bell & Duke Cat Complete Chicken
A complete raw chicken meal for kittens, adult and senior cats, 98% chicken. Frozen 250g tub.
£3.65
Bella & Duke Cat Complete Turkey, Chicken & Lamb
A complete raw meal for kittens, adult and senior cats, made with turkey, chicken and lamb. Frozen 250g tub.
£3.65
Bella & Duke Cat Complete Lamb & Duck
A complete raw meal for kittens, adult and senior cats, made with lamb and duck. Frozen 250g tub.
£3.65
Bella & Duke Cat Complete Turkey & Salmon
A complete raw meal for kittens, adult and senior cats, made with turkey and salmon. Frozen 250g tub.
£3.65
Bella & Duke Cat Complete Turkey, Rabbit & Lamb
A complete raw meal for kittens, adult and senior cats, made with turkey, rabbit and lamb. Frozen 250g tub.
£3.65
Applaws Natural Wet Kitten Food, Tuna Fillet in Jelly — 24 x 70g Tins
Sold as a case: 24 x 70g tins. Tuna fillet wet food for kittens in jelly, fed as a complementary food up to 12 months
£33.39
Cookhouse Cat Fish Pate Terrine 6pk
A 6-pack of tuna pate pouches in jelly for adult cats, 11% protein, 71kcal/100g
£4.99
Cookhouse Cat Chicken & Liver Pate Terrine 6pk
A 6-pack of chicken and liver pate terrine pouches for adult cats, 100% complete
£4.99
Lily's Kitchen Shredded Fillets in Broth Tins Multipack 32pk
A 32-tin cat food multipack across four broth recipes, so fussy eaters get variety
£47.99
Harringtons Cat Fish Selection in Jelly 12pk
Twelve cat food fillets in jelly, marketed on fish but built mainly on chicken
£6.39
Lily's Kitchen Chicken Pate for Mature Cats — 19 x 85g Trays
Sold as a case: 19 x 85g trays. Complete 85G mature-cat chicken pâté with equal chicken and pork
£24.59
Common questions
- Does cat food normally contain sugar?
- Not in any meaningful amount in most recipes, since cats can't taste sweetness and there's little reason to add it. Some wet food gravies and cheaper treats do use sugar-like ingredients, so it's worth checking the label if you want to be sure.
- Is grain-free cat food automatically sugar-free?
- No, the two claims aren't connected. Grain-free refers to the absence of grains like wheat or maize, and says nothing about whether sugar or a similar ingredient has been used elsewhere in the recipe. Check the ingredients list itself rather than assuming from the front-of-pack claim.
- Can sugar in cat food cause weight gain?
- Any excess calories can contribute to weight gain, but overall calorie intake relative to your cat's activity level matters far more than sugar specifically. If you're concerned about your cat's weight, that's worth discussing with your vet rather than focusing on one ingredient.
- Should I avoid cat food with any sugar in it?
- For most healthy cats it isn't necessary to be strict about small amounts, since it's rarely a significant part of the recipe. If your cat has a medical reason to limit sugar or carbohydrate, such as diabetes, speak to your vet about the diet as a whole rather than screening for one ingredient alone.
Related
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.