High fibre cat food
A higher-fibre cat food can genuinely help with a few specific things — moving hairballs through the gut, supporting a weight-management plan, or firming up loose stools — but "high fibre" is a description of the analytical panel on the back of the bag, not a health claim in itself. Reading the actual percentage matters more than trusting the phrase on the front.
What fibre actually does in a cat's diet
Fibre adds bulk and helps move material through the digestive tract, which is genuinely useful for cats prone to hairballs, since it can help hair pass through rather than sit and form a clump. It also plays a role in some weight-management foods, where added fibre helps a cat feel fuller on fewer calories.
Cats are obligate carnivores and do not need fibre the way a more omnivorous animal does, so a very high fibre content is not automatically better — it is a tool for a specific job (hairballs, weight, or firmer stools) rather than a general marker of quality.
How to actually read the label
The analytical constituents panel on any complete cat food lists a crude fibre percentage, and this is the figure to compare across foods rather than relying on marketing language like "high fibre" on the front of the bag, which has no fixed legal threshold behind it.
A specialist hairball-control or weight-management formula will generally sit noticeably higher on crude fibre than a standard adult recipe, and comparing the actual numbers side by side on the panel is the only reliable way to judge which food genuinely delivers more fibre than another.
When a higher-fibre food is worth trying
A cat who regularly brings up hairballs, particularly a longer-haired breed, may do better on a hairball-control formula built around higher fibre alongside regular grooming to reduce how much loose hair they are swallowing in the first place.
A cat on a weight-management plan may also benefit from a higher-fibre food as part of that plan, since it can help with satiety at a lower calorie intake. Either way, a genuine ongoing digestive issue, persistent vomiting, or a cat who is losing weight unexpectedly should go to your vet rather than be managed by switching foods alone.
What else affects fibre in the diet
Wet food and dry food are not directly comparable on the fibre figure printed on the pack, since wet food's percentage is calculated against a much higher moisture content — a like-for-like comparison needs the figures converted to a dry-matter basis, which most owners will not do by hand and is a reasonable thing to ask your vet or the manufacturer to help with.
Sudden changes in fibre intake, in either direction, can cause a temporary change in stool consistency while a cat's gut adjusts, so introducing a new higher-fibre food gradually over a week or so, mixed with the previous food, tends to go more smoothly than switching overnight.
Our picks, and why
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

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

James Wellbeloved Light Adult Dry Cat Food Fish
A lower-calorie fish dry food for adult cats managing their weight, with joint-support ingredients
£24.65
Common questions
- What fibre percentage counts as high in cat food?
- There is no fixed legal threshold for the term, so it is worth comparing the crude fibre figure on the analytical panel across a few foods rather than trusting "high fibre" wording on the front of the bag. Specialist hairball or weight-management formulas typically sit noticeably higher than a standard adult recipe.
- Does high fibre food help with cat hairballs?
- It can, by helping move swallowed hair through the digestive tract rather than letting it sit and form a clump. Regular grooming to reduce how much loose hair a cat swallows in the first place makes a genuine difference alongside it.
- Is high fibre food good for an overweight cat?
- It can be a useful part of a weight-management plan, since added fibre can help a cat feel fuller on fewer calories. Your vet can advise on a full weight-management approach rather than relying on food choice alone.
- Can too much fibre be bad for a cat?
- As with most things, more is not automatically better. Cats are obligate carnivores with a diet built around meat rather than fibre, so a specialist higher-fibre food should be chosen for a specific reason — hairballs, weight or firmer stools — rather than assumed to be a general upgrade.
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.