The best canned sardines for cats are packed in water with no added salt, avoiding oil (especially omega-6 oils like soy/sunflower) or sauces (like tomato, onion, garlic) that can contain harmful additives or excess salt/fat; they offer great protein and Omega-3s but should be a treat in moderation, not a full meal, as they're high in fat and can have heavy metals, though sardines are low-mercury fish.
Don't feed a cat ham, bologna, salami, or other processed or smoked meats. Raw Fish.
Premium Canned Seafood for Cats
Finest Fish4Cats Sardine with Anchovy. Give your cat a taste sensation with Fish4Cats Sardine with Anchovy. This rich, savoury combination of sardine and anchovy will surely please even the fussiest eaters. It's packed with benefits for a healthy coat and skin, while the juicy broth helps support urinary tract health.
Canned almost-anything packaged for human consumption almost always has MUCH too much sodium added, for a feline's healthy diet—especially fishes—tuna also often contains hazardous trace-amounts of mercury, as well (for this reason, I would lean toward sardines as being the healthier alternative of the two).
Summary. Sardines are more nutrient-dense than tuna as they have 11% fat and 25% protein, while tuna only has 0.6% fat and 29% protein. One serving of either fish provides 36-39% of the DV for protein.
Canned fish including salmon, tuna and sardines, packed in water and low in salt, rinsed and drained thoroughly, is another good option. Avoid feeding fish constantly as it is not a complete diet. Avoid sushi and raw fish.
A few sardines a week can help your pet's coat shine and keep joints comfortable, even as they age. Pet Parent Note: Taurine is absolutely essential for cats, and they cannot make it themselves. Adding sardines is like giving them a natural supplement—without the pills or powders.
Ingredient quality is comparable to Sheba, with meat or meat by-products usually listed first. Both brands contain similar additives and preservatives typical of commercially produced wet cat foods. Fancy Feast does offer a “Natural” line with fewer artificial ingredients for those seeking cleaner labels.
Before giving your cat a snack, discover common foods to avoid that can be harmful to them.
What food is irresistible to cats? Whether they're in a mood with you or you need to entice them into the pet carrier for a trip to the vet (good luck), tempting them with irresistible food will do the trick. Cats are drawn to strong-smelling food. Fresh, warm chicken or salmon or tuna will always pique their interest.
Bones can also splinter, which can result in sharp pieces that damage the mouth, throat, and organs. Chicken bones also have the potential for blocking your cat's intestinal tract, resulting in a partial or complete obstruction. Chicken bones should always be off-limits to both cats and dogs.
Chronic kidney disease is the most common silent killer in cats, and can be genetic. With this disease, 75% of both of your cat's kidneys don't work properly, and there are a few symptoms you can identify: Excessive drinking and urinating.
While cats can eat tuna occasionally, there are potential health risks. Tuna is high in mercury, a toxic metal that can accumulate inside the fish itself. Mercury is dangerous for cats to consume in large amounts as it can harm their kidneys and increase the risk of kidney failure.
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The “25 Percent” or “dinner” rule: The “25%” or “dinner” rule applies to products if the named ingredients make up at least 25% (excluding water used for processing) but less than 95% of the named product by weight. If water is included, the named ingredients must amount to at least 10% of the product by weight.
The best all-rounder: Sardines
These are top of the list for healthy tinned fish. These small, sustainable fish are rich in omega-3s, calcium (thanks to the edible bones), vitamin D and protein. They're also low in mercury and big on flavour.
Sardines deliver more protein than mackerel, making them a top choice for people aiming to increase their protein intake. This higher protein content is beneficial for those focused on muscle repair, growth, or maintaining a high-protein diet in a compact, sustainable source.
Light canned tuna is a good source of high-quality protein and omega-3 fatty acids. Cats also have been known to enjoy this oily fish. Make sure to choose a light canned tuna, since it is lower in mercury compared to other types. However, this treat should still be given in moderation.
They do contain sodium naturally, but not enough to harm cats or dogs when eaten in moderation. On average, our sardines contain 0.11% (1.7 mg) of sodium per 1.5g sardine. The AAFCO actually recommends that dry food for dogs contains at least 0.3% sodium. And for cats, it's 0.2% sodium.
Offering your cat cooked salmon from time to time is a safe bet, while canned tuna should just be a once-in-a-while treat. Learn more about which human foods are safe for cats and which foods to avoid.