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The Health Benefits of Sardines for Dogs

Sardines are a highly nutritious, oily cold-water fish that comes with powerful anti-inflammatory benefits.

Sardines are small in size and safe to offer dogs on a regular, weekly basis because they feed on plankton. This means that sardines don’t store large amounts of toxins like mercury in their bodies.

That’s the case in larger fish such as tuna and salmon which feed on fish that’s been contaminated by industrial pollution.

The latter two should be fed in moderation because of their higher content of toxins.

I fed my boxer mixes Missy & Buzz salmon about once a month, while they ate sardines on a weekly basis. You can buy them in bulk from Raw Paws here.

I personally love eating canned sardines myself, and I’ll either eat them straight out of the can or I’ll mash them up a little and then scoop them into multi-grain Tostitos, along with a glass of red wine.

Missy & Buzz would always get some when I’d open a can for myself, which was kind of a bonding ritual between the three of us,

Now I do the same with my canine pet sitting guests Lila & Rocky, and they absolutely love their fishy treat!

Lila and Rocky

Sardines are one of the most nutrient dense foods because they’re rich in:

  • Omega-3 fatty acids
  • Protein
  • Minerals such as iron, magnesium, phosphorus, calcium, potassium
  • Amino acid taurine
  • Trace minerals such as iodine, manganese, copper, selenium, zinc
  • Vitamins D, B 3, B 6, B 12
  • Coenzyme Q10

All of these make sardines a powerful ally for:

  • Brain health – helps brain development in puppies and keeps adult brains functioning properly
  • Heart health – supports blood circulation
  • Skin & coat health – soothes dry & itchy skin, supports soft & shiny coats
  • Joint & bone health – lubricates joints and maintains healthy skeletal structure

Sardines for dogs – how much to feed?

Renowned dog nutrition expert Steve Brown recommends feeding 1/4 can sardines once or twice a week for a 40 lb dog, meaning sardines can account for a small percentage of a dog’s overall weekly food intake.

For raw fed dogs this translates into 5-10% of the 80% muscle meat formula because it’s a very rich and oily food.

Reminder: A balanced raw meal for dogs consists of 80% muscle meat, 10% organs, and 10% raw meaty bones with the option of adding some pureed veggies and/or fruit.

Sardines can be added to a dog’s raw meal, fed as a kibble food topper to entice a picky eater’s appetite, or as a stand alone snack a few times per week.

Remember to always introduce new foods slowly to avoid an upset stomach.

Tip: Sardines can also be fed to cats and kittens! Mix sardines with your cat’s raw meal, canned meal or dry meal!

Where to buy sardines

Sardines can be bought canned from grocery stores either in water or in olive oil. For dogs, it’s best to avoid the kind that’s been canned in condiments such as mustard or ketchup, as well as those in soybean oil. Also make sure to opt for a brand with a low sodium content.

Ideally you’ll want to feed wild caught sardines to help promote their sustainability, and to ensure that you’re feeding the kind that haven’t been treated with antibiotics, pesticides, and growth hormones, which is how farmed sardines are raised.

Farm raised sardines are also typically fed an unnatural diet of grains which makes them a lot less nutritious than their wild-caught counterparts that feed on plankton.

You can buy canned sardines in bulk from Amazon, but they can also be purchased raw frozen from online raw feeding retailers.

The ones I typically buy are King Oscar sardines that have been wild-caught in the North Atlantic, and that come with a low sodium content. Their price is $2.79/can at my local grocery store, but they’re also available on Amazon, both in olive oil ($34.85 for a 12 pack) and in water ($31.78 for a 12 pack).

King Oscar wild caught sardines in olive oil and in water

Sardines are a great alternative to fish oil supplements

There’s definitely no need to spend lots of money on fish oil supplements if you’re adding sardines to your dog’s diet.

Canned sardines’ low price makes them a budget-friendly alternative to bottled fish oil supplements or fish oil pills which tend to be more on the pricey side. They’re also more convenient to store since they don’t run the chance of turning rancid like fish oil does once it’s been opened.

Does your dog (or cat!) eat sardines on a regular basis? What about yourself?

Let us know in the comments!

Barbara Rivers writes regularly for That Mutt. She is a blogger, raw feeder and former dog walker and maintains the blog K9s Over Coffee

Debra P Rowe

Sunday 14th of March 2021

What breed dogs do you have? I am fostering a black dog that looks just like yours @Barbara R

Joseph Dominic

Tuesday 30th of July 2019

Sardines in olive oil once a week gives my 2 year old standard poodle diarrhea.


Friday 26th of July 2019

I made sardine jerky for my chihuahua that has CHF and he loves it and I see a difference in his energy, eyesight and breathing at night is way better


Saturday 17th of November 2018

My cats LOVE their weekly sardines. I always thought of them as gross but I shared with the cats the first time I put theirs out. Now I love sardines too.

Barbara R.

Saturday 24th of November 2018

Haha, that is AWESOME! Welcome to the human sardine lovers club!

Marko Wittich

Thursday 8th of November 2018

Can't agree more. Small oily ocean fish like anchovies or sardines make an excellent treat or food supplement. Our Vizsla absolutely LOVES them!

Lindsay Stordahl

Thursday 8th of November 2018

I'm sure she does!