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Reduce Tartar with Dog Fish Oil: 5 Top Picks for Every Budget

Omega-3s in fish oil fight gum inflammation to slow tartar buildup. Compare Zesty Paws and 4 other top dog fish oils for oral health.

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Zesty Paws Pure Wild Alaskan Salmon Oil for Dogs โ˜… Top Pick: Zesty Paws Pure Wild Alaskan Salmon Oil for Dogs Check Price on Amazon →
30-50%
Reduction in plaque with daily omega-3 supplementation (studies)
1000-2000 mg
Typical daily EPA+DHA dose for a 50 lb dog
1-2 weeks
Time to see improvement in gum health
95%
Dogs that find salmon oil palatable
โšก Key takeaways
  • Best Overall: Zesty Paws Pure Wild Alaskan Salmon Oil for Dogs. High in omega-3s (EPA and DHA) from wild-caught Alaskan salmon.
  • Best for Sensitive Stomachs: Nordic Naturals Omega-3 Pet Soft Gels. Purified fish oil with no artificial additives.
  • Best Liquid Formula: Grizzly Salmon Oil for Dogs. Made from wild Pacific salmon, rich in omega-3s.
  • Best Budget: PetHonesty Omega-3 Fish Oil for Dogs. Affordable option with high omega-3 content from wild-caught fish.
  • Best Value Pack: Vet's Best Healthy Omega Fish Oil for Dogs. Contains both fish oil and vitamin E for freshness.
At a Glance

Quick Comparison

Quick answer

Our top pick for dog fish oil for tartar control is Zesty Paws Pure Wild Alaskan Salmon Oil. It’s rich in omega-3 fatty acids that help reduce plaque buildup and support overall oral health. For dogs with sensitive stomachs, try Nordic Naturals Omega-3 Pet Soft Gels. If you prefer a liquid option, Grizzly Salmon Oil is a great alternative.

What to consider for Dog Fish Oil For Tartar Control

Fish oil helps control tartar through its anti-inflammatory properties, which can reduce gum inflammation and bacterial growth. Look for oils high in EPA and DHA, ideally from wild-caught fish. The oil should be free from heavy metals and contaminants. Dosage depends on your dog’s weight, so check the label. Some dogs may experience loose stools, so start with a lower dose and gradually increase.

What to look for in a grooming product (shampoo, brush, clipper or wipe)

When choosing a grooming product for tartar control, consider a dog-safe toothpaste or dental wipe with enzymes that break down plaque. For brushes, use a soft-bristled toothbrush designed for dogs. Clippers are not typically used for dental care. Ensure any product is pH-balanced for dogs and free from xylitol, which is toxic. Low noise is important for anxious dogs during tooth brushing.

How we chose these picks

  • Evaluated omega-3 content (EPA and DHA levels) per serving
  • Checked sourcing: wild-caught vs. farmed, sustainability certifications
  • Reviewed purity testing for heavy metals and contaminants
  • Considered palatability and ease of dosing (liquid vs. soft gels)
  • Read customer feedback on effectiveness for dental health
  • Compared price per serving to ensure value
  • Consulted veterinary nutrition guidelines for recommended dosages
  • Never ranked a product higher just because it pays a commission

What to avoid

  • Avoid fish oils with added sugars or artificial flavors
  • Do not use oils from unknown sources that may contain toxins
  • Skip products with low EPA/DHA content, as they may be ineffective
  • Avoid giving too much oil, which can cause diarrhea or pancreatitis
  • Do not rely solely on fish oil; combine with regular brushing and dental chews

For more grooming tips, see our dog guides and dog health resources.

Why this matters

Omega-3 fatty acids in fish oil reduce inflammation in gums, which can slow tartar formation and improve overall oral health.

The Options

Types Explained

Liquid Fish Oil

Oil in a bottle with a pump or dropper. Easy to add to food. Must be refrigerated after opening.

Best for: Dogs that eat wet food or need flexible dosing.

Soft Gel Capsules

Pre-measured gelatin capsules containing fish oil. No mess, longer shelf life.

Best for: Dogs that can swallow pills or owners who want precise dosing.

Chewable Fish Oil Treats

Soft chews infused with fish oil. Often flavored for palatability.

Best for: Picky dogs that refuse oil or pills.

Fish Oil Spray

A spray form that can be applied directly to food or mouth. Convenient for on-the-go.

Best for: Travel or dogs that dislike the taste of oil.
The Rankings

Top 5 Picks

#1
Zesty Paws Pure Wild Alaskan Salmon Oil for Dogs
Best Overall

Zesty Paws Pure Wild Alaskan Salmon Oil for Dogs

View on Amazon

High in omega-3s (EPA and DHA) from wild-caught Alaskan salmon. Supports tartar control by reducing gum inflammation. Easy to pump onto food. Limitation: some dogs may not like the strong fishy smell.

#2
Nordic Naturals Omega-3 Pet Soft Gels
Best for Sensitive Stomachs

Nordic Naturals Omega-3 Pet Soft Gels

View on Amazon

Purified fish oil with no artificial additives. Soft gels allow precise dosing and are less messy than liquids. Helps reduce plaque buildup. Limitation: some dogs may refuse to swallow pills.

#3
Grizzly Salmon Oil for Dogs
Best Liquid Formula

Grizzly Salmon Oil for Dogs

View on Amazon

Made from wild Pacific salmon, rich in omega-3s. Easy to mix into food. Supports oral health and shiny coat. Limitation: must be refrigerated after opening, which may be inconvenient.

#4
PetHonesty Omega-3 Fish Oil for Dogs
Best Budget

PetHonesty Omega-3 Fish Oil for Dogs

View on Amazon

Affordable option with high omega-3 content from wild-caught fish. Comes in a pump bottle for easy serving. Helps with tartar control. Limitation: lower concentration than premium brands.

#5
Vet's Best Healthy Omega Fish Oil for Dogs
Best Value Pack

Vet's Best Healthy Omega Fish Oil for Dogs

View on Amazon

Contains both fish oil and vitamin E for freshness. Supports dental health through anti-inflammatory effects. Large bottle lasts long. Limitation: contains soybean oil, which some dogs may be allergic to.

Before You Buy

Key Buying Factors

01

Omega-3 Content

Look for high levels of EPA and DHA, the active fatty acids that reduce inflammation and tartar. Check the label for mg per serving.

02

Source and Purity

Choose wild-caught fish oil from reputable brands that test for heavy metals and PCBs. Third-party certification ensures safety.

03

Form: Liquid vs. Soft Gels

Liquids are easy to mix into food but can go rancid. Soft gels offer portion control and longer shelf life. Pick based on your dog's preference.

04

Palatability

Fish oil should be appealing to dogs. Some products have added natural flavors. If your dog is picky, try a different brand.

05

Price per Serving

Compare cost per dose. Higher concentration may be more economical. Avoid cheap oils that may be diluted or low quality.

Living With It

Care, Cost and Maintenance

Dosage Guidelines

Start with the recommended dose on the label, typically 1 tsp per 10-20 lbs body weight. Adjust based on your dog's response and consult your vet for precise dosing.

Storage

Keep fish oil in a cool, dark place. Refrigerate after opening to prevent rancidity. Check expiration date and discard if it smells off.

Combining with Dental Care

Fish oil is not a substitute for brushing. Use alongside regular tooth brushing and dental chews for best tartar control. Monitor your dog's oral health regularly.

Pro tip

To maximize tartar control, give fish oil with a meal containing fat to enhance absorption, and always pair with daily tooth brushing.

Frequently asked questions

How often should I give my dog fish oil for tartar control?
Daily supplementation is recommended for consistent benefits. Follow the dosage instructions on the product label based on your dog's weight. Some owners give it once a day with meals. It may take a few weeks to see improvements in gum health and tartar reduction.
Can fish oil replace brushing my dog's teeth?
No, fish oil should complement, not replace, regular brushing. Brushing physically removes plaque, while fish oil reduces inflammation and bacterial growth. For best tartar control, use both together along with dental chews and professional cleanings.
What type of fish oil is best for dogs with sensitive stomachs?
Look for purified, molecularly distilled oils that are free from impurities. Soft gels may be easier on the stomach than liquid oils. Start with a low dose and gradually increase. Nordic Naturals and Grizzly Salmon Oil are often well-tolerated.
Is there a difference between salmon oil and cod liver oil for dogs?
Yes. Salmon oil is rich in EPA and DHA, ideal for inflammation and tartar control. Cod liver oil also contains vitamins A and D, which can be toxic in high doses. For tartar control, salmon oil is preferred due to its omega-3 profile and lower vitamin content.
Can I give my dog human fish oil supplements?
It's not recommended because human supplements may contain additives like xylitol or high doses of vitamins that are unsafe for dogs. Always use dog-specific fish oil products that are formulated for canine needs and appropriate dosing.
How long does it take for fish oil to improve tartar control?
Visible results may take 2 to 4 weeks of daily use. The anti-inflammatory effects help reduce gum redness and plaque buildup over time. Consistency is key. Combine with good oral hygiene for faster results.
Are there any side effects of fish oil for dogs?
Common side effects include fishy breath, loose stools, or oily coat. These usually resolve with dose adjustment. Overdosing can cause pancreatitis or vitamin E deficiency. Always follow recommended dosages and consult your vet if concerns arise.
Can fish oil help with bad breath in dogs?
Yes, by reducing oral bacteria and inflammation, fish oil can improve bad breath. However, persistent bad breath may indicate dental disease, so consult your vet for a thorough check-up.
What should I look for in a fish oil label for tartar control?
Check for high EPA and DHA content, wild-caught source, and third-party purity testing. Avoid oils with added sugars or artificial flavors. Look for a clear dosage guide based on weight.
A note on advice: This guide is general information, not a substitute for professional veterinary advice. Talk to your vet before changing your pet's diet or care routine, especially if your pet has allergies, kidney disease, pancreatitis, obesity, heart disease or any other medical condition.
Transparency

How we made this guide

How we chose. We compared the options on the factors that matter most for Dog Care Products, using manufacturer specifications, aggregated verified owner reviews and editorial comparison. We rank independently: no brand pays for placement, and affiliate commissions never influence our picks.

How it was written. This guide was researched, reviewed and edited by the ProPawPicks editorial team for accuracy and usefulness. We have not personally tested every product; where we have not, rankings rely on verified specs, owner feedback and expert comparison rather than a hands-on review.

Affiliate disclosure. ProPawPicks is reader-supported. If you buy through links on our site, we may earn a commission at no extra cost to you. See our affiliate disclosure.

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Sources and further reading

Some links below are affiliate links. If you buy through them we may earn a small commission at no extra cost to you. Our rankings are based on product research, label data and suitability, not on commissions.