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Can Cats Eat 3 min read Updated 15 Apr 2026

Can Cats Eat Sardines? Vet Guide Safe

Sophie Turner
Reviewed by
Sophie Turner · B. Animal & Veterinary Bioscience, University of Melbourne
Last reviewed 15 Apr 2026
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Sardines are excellent for cats — packed with protein, omega-3 fatty acids, and taurine — but they must be in spring water (not salt water or oil) due to cats' sodium sensitivity.

Can Cats Eat Sardines? The Full Answer

Sardines are one of the best human foods you can offer cats. They're packed with high-quality protein, omega-3 fatty acids (beneficial for coat and joint health), and most importantly, taurine — the amino acid obligate carnivores cannot synthesise and must obtain from diet.

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The critical detail is the liquid. Sardines packed in spring water are ideal. Sardines packed in salt water or oil should be avoided — salt water contributes excessive sodium (problematic for salt-sensitive kidneys), and oil adds unnecessary fat calories. Always drain the liquid thoroughly and rinse with fresh water if using salt-water varieties.

The small bones in sardines are soft and edible, containing calcium — beneficial for obligate carnivores. You can leave them in or remove them based on your cat's preference.

Unlike dogs, cats cannot synthesise taurine and require animal protein to survive. Sardines deliver precisely what cats need nutritionally.

How to Safely Serve Sardines to Your Cat

  1. Purchase sardines in spring water only (avoid salt water and oil varieties)
  2. Drain the liquid thoroughly
  3. Rinse with fresh water if using salt-water varieties (to remove excess sodium)
  4. Serve plain with no additives or seasonings
  5. Small soft bones can be left in (edible and beneficial)
  6. Offer 1–2 sardines, 2–3 times per week
  7. Refrigerate opened cans for up to 48 hours

Faqs

Can kittens eat sardines?

Yes. Kittens can eat small portions of sardines in spring water (10–15g). They're excellent nutrition for growing cats.

Can cats eat sardines every day?

While sardines are nutritious, feeding daily may lead to sodium accumulation or overfeeding. 2–3 times per week is ideal.

Is sardine safe for cats with kidney disease?

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Yes. Sardines in spring water are low in phosphorus and sodium, making them ideal for cats with kidney disease. Consult your vet on portion sizes.

Can cats eat sardines raw?

Canned sardines are already cooked. Fresh raw sardines would require the same food safety precautions as raw fish (freezing for 7+ days to reduce bacterial risk).

Why does my cat want sardines?

Cats are obligate carnivores and are naturally attracted to fish — sardines smell intensely of fish protein. This is a healthy, species-appropriate appetite.

Frequently Asked Questions

Can kittens eat sardines?

Yes. Kittens can eat small portions of sardines in spring water (10–15g). They're excellent nutrition.

Can cats eat sardines every day?

While sardines are nutritious, feeding 2–3 times per week is ideal. Daily feeding may accumulate sodium.

Is sardine safe for cats with kidney disease?

Yes. Sardines in spring water are low in phosphorus and sodium, making them ideal for cats with kidney disease.

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Can cats eat sardines raw?

Canned sardines are already cooked. Fresh raw sardines would require freezing for 7+ days to reduce bacterial risk.

Why does my cat want sardines?

Cats are obligate carnivores and are naturally attracted to fish. Sardines smell intensely of fish protein — a healthy, species-appropriate appetite.

Explore more: This article is part of our Cat Food & Nutrition Hub — browse all guides in this topic.
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Hazel Russell
Written by

Hazel Russell

BVSc — Charles Sturt University

Founder of Pet Care Community. BVSc (Charles Sturt University). Hazel buys, tests, and reviews pet products for real Australian conditions — so you don't waste your money on stuff that doesn't work.

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