CKD Why Vets Recommend Fish Oil

5 reasons why vets recommend omega-3s for cats with chronic kidney disease

Marine omega-3s provide useful daily support for vulnerable kidneys.

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1. The omega-3 cats actually eat — for kidney, heart & whole-body support

What stops most kidney-support routines before they start? The cat refuses. Capsules get spat out. Bottled fish oil oxidises in the fridge, your cat gets one sniff and walk away.

Fureeze® solves that. One pre-measured snap-squeeze pack, stirred through their usual meals, delivers a complete daily dose of marine EPA + DHA from the first mouthful — helping support healthy kidney function, steady circulation and inflammation kept in check.

No pills. No oily bottle. No standoff at the food bowl — just a routine simple enough that you'll actually keep it up every day.

2. A Feline CKD Study Found Improvements in Three Kidney Markers After Just 28 Days

The EPA and DHA in Fureeze® are long-chain omega-3s cats can’t produce on their own—if they’re not in the diet, the cat doesn’t get them.

In a Japanese pilot study, cats given DHA-rich fish oil daily for 28 days showed improvements in 3 kidney-health markers, including SDMA, UPC and Urinary NAG.

Fureeze® delivers marine EPA and DHA in every Snap-Pack. Each serving is also third-party tested containing only 1.2mg of phosphorus—important for kidney-conscious diets—and is produced in a GMP, lab-tested facility.

Reference: https://pubmed.ncbi.nlm.nih.gov/36383208/

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3. Full doses on the label. Zero mystery.

Formulated by researchers from The University of Melbourne, every serving is spelled out on the label, down to the milligram:

Anchovy Oil — a small, short-lived fish low on the food chain, so it carries far less accumulated heavy metal than large-fish oils — which counts when the kidneys are already under strain.
EPA · 160mg — the omega-3 tied most closely to a calm, balanced inflammatory response.
DHA · 118mg — the omega-3 studied for kidney and cognitive support in cats.
Antarctic Krill Oil — phospholipid-bound omega-3 that absorbs more readily, and a natural source of the antioxidant astaxanthin.
Phosphorus · 1.2mg per serving — negligible, so it won't add to the load a renal routine is trying to keep down.

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4. Sealed fresh until serving

Here's the ugly truth about fish oil: the moment a pump bottle or soft-gel meets air, light and warmth, those fragile omega-3s start to oxidise and turn rancid. Rancid oil doesn't just smell off — oxidised fat adds oxidative stress, the exact opposite of the point. It's also the usual reason a fussy cat suddenly won't touch their oil.

Every Fureeze® dose is a sealed single-serve, snap-squeeze-pack. What lands in the dish is the clean, fresh oil you paid for — which is why 91% of cats take it on the first serve.

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5. Over 60,000 cat parents can't be wrong.

Across the UK, US, Canada and Australia, thousands of cat parents have added Fureeze® to their cat’s kidney-care routine. With a 4.7/5 average from more than 2,000 verified reviews, owners repeatedly mention what matters most for long-term support: their cats actually eat it, there’s no oily mess, and it’s easy to give every day. Because when supporting ageing kidneys, consistency matters.

5 seconds a day, no mess, no oily hands

Snap

Squeeze

Enjoy

4.7/5 based on 2,642 reviews

Cats Actually Eat It

Support Your Cat's Kidneys in 5 Seconds a Day

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Fureeze delivers 160mg EPA + 118mg DHA — the marine omega-3s at the centre of senior kidney care — in clean, single-serve snap-packs fussy cats finish.

Supports kidney health & inflammatory balance

160mg EPA + 118mg DHA per snap-pack

1.2mg phosphorus per pack — less than 1% of what a phosphorus-restricted cat eats in a day

Easy to mix into wet food — no measuring, no mess

No fridge, no oily pump bottle, no capsules

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MID YEAR SALE!

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Global omega-3 shortage. Your price stays locked.

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90-day money back guarantee!

If you're not satisfied with our products within 90 days, we’ll refund you – less than 1% of customers use the guarantee!

Why cats with kidney concerns choose Fureeze®

Ageing kidneys benefit from a consistent daily intake of EPA + DHA — but most fish oils fail at exactly that. Bottles oxidise, capsules get refused, doses get guessed. Fureeze delivers a measured 160mg EPA + 118mg DHA in a sealed single-serve sachet your cat will actually eat, every day. Consistency is the whole game — that's what we built for.

My cat is already under vet care for their kidneys — can I still use Fureeze?

Yes — Fureeze is a daily omega-3 supplement designed to work alongside whatever routine your vet has set, including prescription renal diets. It mixes into wet and dry food without replacing anything.

My cat is incredibly fussy — will they actually eat it?

Fussy eating is exactly what we formulated around. In our in-house double-blind palatability trial of 200 cats, 91% preferred Fureeze first-choice over leading fish oil brands. It mixes invisibly into wet food — no pump bottle smell, no capsule to spit out. And if your cat is the exception, the 90-day guarantee means you're not stuck with it.

Can I give this to younger or adult cats too?

Absolutely. While we formulated Fureeze with the needs of senior cats in mind — kidney, joint, and cognitive support become more important with age — the same daily omega-3s (EPA + DHA, skin, coat, and immune support) benefit cats of any age. Many customers feed it to their whole household. One sachet a day, any age.

When will I see results?

Coat softness and shine typically improve within the first month — that's your visible sign the omega-3s are being absorbed. Kidney and whole-body support is the longer game: it builds with consistent daily intake over 2–3 months. This isn't a quick fix, and we won't pretend it is — it's a daily routine that compounds.

Direction of Use

Snap the pack (card), pinch both sides and squeeze the contents onto your cat’s food.

For dry food (kibble), spread evenly over the pellets.

For wet food, pour evenly and mix gently with a spoon.

Suitable for cats age 8 weeks+

Naturally derived ingredients

Fish oil, Antarctic krill oil, hydrolysed chicken powder, Lactobacillus plantarum, taurine, astaxanthin, DL-alpha-tocopheryl acetate (vitamin E), mannan oligosaccharides (MOS), beta-1,3-D-glucan, water, corn starch, trehalose, sodium alginate, xanthan gum, citric acid, potassium sorbate.

Fish Oil (Anchovy)
A concentrated marine source of EPA + DHA, the omega-3 fatty acids that matter most for cats. EPA helps support a healthy inflammatory response, while DHA supports brain health, eye health, skin, coat and overall senior wellbeing.

Antarctic Krill Oil
A naturally palatable marine oil source that provides additional omega-3s and helps support skin, coat condition, and daily wellness.

Lactobacillus plantarum
A beneficial probiotic that helps support gut health, digestion, and nutrient absorption.

Taurine
An essential amino acid for cats that supports heart health, eye health, and overall wellbeing.

Astaxanthin
A powerful antioxidant that helps protect cells from oxidative stress and supports skin and coat health.

Natural Vitamin E
An antioxidant that helps support immune health while protecting skin cells and omega oils from oxidation.

Mannan Oligosaccharides (MOS)
Supports gut health and digestive balance, helping improve nutrient absorption and overall wellbeing.

“After Mochi was diagnosed with early kidney disease, I was scared of watching her lose weight and stop being herself. Bottled fish oils made her refuse her renal food, but she eats Fureeze without hesitation. Within weeks, she seemed brighter, ate better and started grooming again. It’s now an easy part of her daily kidney routine.”

- Sarah Lyn.

The information contained within this site is not intended as a substitute for professional medical or veterinary advice. If your pet has, or you suspect your pet has any medical condition you are urged to consult your veterinarian. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Medical conditions can only be diagnosed by a licensed veterinarian.

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