5 Best Fish Oil for Dogs

As dedicated caretakers of our beloved pets, our commitment revolves around offering optimal care to guarantee their well-being and joy. Much akin to how we care for ourselves, our canine companions can experience remarkable advantages from incorporating nutritional supplements into their routines. Among these supplements, fish oil has garnered notable attention. Abundant in vital omega-3 fatty acids, fish oil presents a diverse array of advantages for dogs, encompassing enhanced fur condition, bolstered joint wellness, and heightened cognitive capabilities. Within the confines of this article, we will immerse ourselves in the realm of fish oil tailored for dogs, while also examining some of the finest choices accessible in the current market. For more health guides for dogs, follow Puainta.

1. Nordic Naturals Omega-3 Pet Soft Gels

Nordic Naturals is a well-respected brand in the supplement industry. Their Omega-3 Pet Soft Gels are specifically formulated for cats and are sourced from wild-caught fish. These soft gels contain high levels of EPA and DHA, promoting healthy skin, a shiny coat, and joint flexibility in felines.

What We Liked

omega-3 fish oils are in the form of triglyceride molecules (the form naturally found in fish) for optimal absorption

Contains no artificial colors, flavors or preservatives

Each softgel contains 165 mg of EPA and 330 mg of DHA

What We Didn’t Like

Harder, more plastic gel capsules become more difficult to puncture.

2.Puainta Sardine Fish Oil for Dogs and Cats

Puainta sardine oil for dogs and cats are sold in a 20/ 90-count bottle and containing guaranteed levels of DHA and EPA. for cats between over 4.5 pounds, the recommended dose of one capsule per day contains 262 mg of EPA and 172 mg of DHA per serving.

These omega-3 capsules provide an easy-to-take alternative to liquid supplements, but you can also cut off the tip of the capsule and squeeze the liquid directly onto your cat’s food. These capsules are rich in omega-3s to support your cat’s skin, eye, joint, brain, heart and kidney health!

What We Liked:

Guaranteed levels of DHA and EPA

Snip the tip off the administer as a liquid

Support skin, eye, joint, brain, heart, and kidney health

Added vitamin E and vitamin A (since fish oil supplementation can lead to lower vitamin E levels)

This fish oil undergoes ultra-refining, extraction and molecular distillation in an ISO 22000 and GMP and EIA certified manufacturing facility.

What We Didn’t Like:

Some cats may not accept capsules

3. Zesty Paws Pure Wild Alaskan Salmon Oil for Cats

Zesty Paws stands out as a highly reliable producer of pet merchandise, encompassing items like supplements such as Wild Alaskan Salmon Oil designed for both dogs and cats. This supplement boasts a high concentration of omega-3 fatty acids, crucial for bolstering heart well-being, cognitive prowess, and immune system resilience in feline companions. Moreover, it proudly excludes any synthetic flavors, preservatives, or additives from its formulation.

Within this supplement lies untainted wild Alaskan salmon oil, delivering a substantial 850 mg of omega-3 fatty acids per teaspoon, which equates to 4.5 grams. This liquid supplement is easy to add to your cat’s diet and he’ll love the authentic salmon flavor.

What we like:

Rich in essential omega-3 DHA and EPA

Liquid form is easy to administer

Supports joint, hip, heart and immune health

Made in the USA with wild Alaska salmon

What we don’t like.

Strong fishy taste

4. Grizzly Omega Health for Cats

Grizzly Omega Health is a well known brand known for their high quality fish oil products. Their cat-specific formula contains sustainably sourced wild Alaskan salmon oil that provides optimal levels of DHA and EPA. This supplement helps maintain healthy skin, a lustrous coat and overall immune system function.

What we like

Large quantities for families with multiple fur kids

Wild-caught, sustainably harvested Alaska deep water only

Pump-loading design, easy to use

What we don’t like

Some reviewers say the pump leaks

May make your cat breathe in smelly fish

5. Fera Pet Organics Fish Oil

Using sustainably sourced, wild-caught sardines, anchovies, herring, mackerel from Iceland, Fera Pet Organics Fish Oil is unmatched in its purity. With the highest amount of EPA and DHA compared to other leading brands, it’s no wonder this omega-3 supplement packs a punch. Fish oil supplementation may cause lowered levels of Vitamin E, so Fera Pet adds this natural antioxidant through distilled, non-GMO, and soy-free sunflowers.

What we like

Added vitamin E (since fish oil supplementation can lead to lower vitamin E levels)

900 mg of EPA and 600 mg of DHA per teaspoon

Wild sardines, anchovies, herring, mackerel from Iceland

What we don’t like

Dogs may not like the taste

Strong fishy smell

Some reviews say dogs get upset stomachs when eating it

How Much Fish Oil To Give A Dog Daily?

The suitable amount of fish oil for dogs may differ based on elements like the dog’s dimensions, weight, and general well-being. Fish oil is commonly given to dogs to increase their intake of Omega-3 fatty acid, which has been shown to have potential benefits for skin, fur and joints. You can use the following guidelines as a guideline:

Age/ weightDosage of fish oil for dogs
Small Dogs (up to 10 lbs)About 100-200 mg of EPA/DHA (combined) per day.
Medium Dogs (10-25 lbs)About 200-400 mg of EPA/DHA (combined) per day.
Large Dogs (25-50 lbs)About 400-800 mg of EPA/DHA (combined) per day.  
Extra Large Dogs (50 lbs and above)Around 800-1200 mg of EPA/DHA per day (combined).

Remember that the dosage of fish oil is determined by its total amount of EPA (eicosapentaenoic) and DHA, the biologically active components of omega-3 fatty acid. Be sure to read the label of any fish oil supplements you choose to determine the amount of EPA and DHA in each serving.


Q: What could be the effects of fish oils on dogs?

A: Administering fish oil to dogs within appropriate dosages is generally regarded as safe. Nevertheless, similar to any supplementary product or medication, there exists the possibility of side effects, particularly if the dose exceeds recommended levels. Several potential effects of fish oil on dogs encompass:

  • Gastrointestinal Disturbance: Elevated quantities of fish oil might occasion gastrointestinal disturbances like diarrhea, vomiting, or flatulence.
  • Pancreatitis: Dogs prone to pancreatitis or with a history of it necessitate careful monitoring when supplemented with fish oil. The high fat content in fish oil could potentially instigate or exacerbate this condition.
  • Coagulation Impairment: Omega-3 fatty acids can mildly act as anticoagulants, leading to a subtle blood-thinning effect. If a dog is concurrently taking medications that influence blood clotting, combining them with fish oil could amplify the susceptibility to bleeding.
  • Insufficient Vitamin E: Prolonged elevated fish oil intake may deplete a dog’s vitamin E levels. Vitamin E is a crucial antioxidant that safeguards cells against damage. To counteract this, certain fish oil supplements for dogs incorporate added vitamin E.
  • Immune System Dampening: In infrequent instances, an excessive intake of omega-3 fatty acids might potentially suppress a dog’s immune system, potentially heightening vulnerability to infections. 

Q: What type of omega-3 fish oil is best?

A: Fish oil supplements typically come in capsule or liquid form, though you may find them in soft chews as well. Look for a natural omega-3 supplement made with fish oil in its triglyceride form – the form your cat would naturally consume in pet food. Fish oil supplements made with synthetic oil (known as ethyl ester) contain high concentrations of EPA and DHA but they are more difficult for your cat’s body to absorb.


Integrating a premium fish oil supplement into your canine companion’s daily regimen has the potential to greatly boost their holistic health and general sense of well-being. Always bear in mind that making a well-considered choice, guided by your dog’s unique requirements and inclinations, will pave the way for optimal results in terms of their enduring well-being…


Sanket Goyal is an SEO specialist at and is passionate about new technology and blogging.

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