How Much Salmon Oil Should I Give My Dog in Canada: Dosage by Weight, Safety and Top Brands

Salmon oil is one of the most widely used daily supplements for dogs across Canada, prized for its rich concentration of omega-3 fatty acids — particularly EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). For dog owners in Ontario and beyond, understanding how much salmon oil to give a dog based on weight, what safety precautions matter, and which Canadian-market brands are worth considering can make a meaningful difference in their pet's everyday wellness. As of 2026, salmon oil remains a go-to recommendation for dogs experiencing dry skin, dull coats, joint stiffness, and inflammation — though always consult your veterinarian before beginning any new supplement routine.

This guide covers salmon oil dosage by weight, signs of overuse, how to introduce it safely, and the brands available at Ashario Pets, a premium pet supply store located at 1111A Finch Ave W, Unit 2, North York, Ontario, open 7 AM to 11 PM daily, 365 days a year.

Why Canadian Dog Owners Use Salmon Oil

Canada's cold climate, combined with the prevalence of dry indoor air in provinces like Ontario, can take a visible toll on a dog's skin and coat — especially during the long winter months. Salmon oil delivers concentrated omega-3 fatty acids that support:

• Skin hydration and coat shine — omega-3s help restore moisture to dry, flaky skin
• Joint comfort and mobility — particularly relevant for older dogs or larger breeds prone to hip and joint issues
• Heart and cardiovascular function — EPA and DHA have been studied for their role in supporting cardiac health
• Cognitive development — DHA is associated with healthy brain function, especially in puppies
• Immune system support — omega-3 fatty acids play a role in modulating inflammatory responses

Dog owners in Ontario interested in exploring salmon oil supplements can browse the dog health and wellness collection at Ashario Pets, which includes a curated range of supplements vetted for quality and Canadian relevance.

Salmon Oil Dosage for Dogs by Weight: General Canadian Guidelines

The most commonly referenced guideline for omega-3 supplementation in dogs — including from salmon oil — is approximately 20 to 55 mg of combined EPA and DHA per kilogram of body weight per day. However, dosage can vary significantly depending on the product's concentration, whether the dog already eats a fish-based diet, and individual health status. Your veterinarian is your most reliable source for a tailored dosage recommendation.

Below are general starting points based on weight, which can be helpful as an initial reference for Canadian dog owners:

• Under 5 kg (small dogs such as Chihuahuas or toy breeds) — approximately 0.5 to 1 mL of standard salmon oil per day
• 5 to 10 kg (small to medium breeds) — approximately 1 to 2 mL per day
• 10 to 20 kg (medium breeds such as Beagles or Cocker Spaniels) — approximately 2 to 4 mL per day
• 20 to 35 kg (medium-large breeds such as Labrador Retrievers or Border Collies) — approximately 4 to 6 mL per day
• 35 kg and above (large breeds such as German Shepherds or Great Danes) — approximately 6 to 10 mL per day, or as directed by a veterinarian

These figures are general estimates and not a substitute for veterinary guidance. Always read the product label carefully, as salmon oil products vary widely in EPA/DHA concentration. Some products are more concentrated and require smaller doses to deliver the same omega-3 benefit.

How to Introduce Salmon Oil Safely

Even a well-tolerated supplement like salmon oil should be introduced gradually. A sudden increase in dietary fat can cause loose stools or gastrointestinal upset in dogs that are not accustomed to it. Here is a safe introductory approach:

• Week 1: Start with roughly one-quarter of the target dose, added to food once daily
• Week 2: Increase to half the target dose if no digestive issues occur
• Week 3 onward: Move to the full recommended dose if the dog is tolerating it well

Salmon oil is best served drizzled over food rather than given as a standalone liquid. Most dogs accept it readily as it has a palatable scent. It should be stored in a cool, dark location — or refrigerated after opening — to prevent oxidation, which can degrade the quality of the omega-3 content and potentially cause digestive irritation.

For more guidance on supporting your dog's day-to-day health needs, visit Ashario Pets' dog wellness needs resource page.

Safety Considerations: When Too Much Salmon Oil Becomes a Problem

While salmon oil is generally well-tolerated, overuse carries real risks. Giving too much fish oil can lead to:

• Loose stools or diarrhea — excess fat in the diet is a common digestive trigger
• Fishy body odour or bad breath — a noticeable sign of oversupplementation
• Reduced platelet function — very high omega-3 doses may affect blood clotting, which is a concern for dogs going into surgery or those on blood-thinning medications
• Weight gain — salmon oil is calorie-dense; excess calories contribute to unwanted weight in less active dogs
• Vitamin E depletion — long-term high-dose omega-3 supplementation has been associated with increased oxidative stress, which can reduce vitamin E levels in some dogs

Always consult your veterinarian if your dog is on any medication or has a pre-existing health condition before starting salmon oil. This is especially important for dogs managing heart disease, blood disorders, diabetes, or pancreatitis. For additional questions about pet supplements, you can also review the Ashario Pets FAQ page.

Top Salmon Oil and Omega-3 Supplement Brands Available at Ashario Pets

Ashario Pets, located at 1111A Finch Ave W, Unit 2, North York, ON M3J 2P7, carries a range of verified supplement brands that include omega-3 and salmon oil options for dogs. As of 2026, the following brands from our verified list offer products relevant to this category:

• MOJO Pet Supplements — a specialist supplement brand offering targeted omega-3 and joint support formulas for dogs
• Canine Matrix — known for functional supplement blends that support immunity and inflammation
• Canine Life — formulated to support overall canine health with nutrient-rich supplement options
• Wellytails — a Canadian brand focusing on pet wellness supplements including fish-based omega-3 products
• Pawtanical — a natural supplement brand that includes plant and animal-derived wellness products
• The Honest Kitchen — offers food-grade supplement products crafted with whole-food ingredients

You can explore the full dog health supplements selection online or visit the store in North York for in-person guidance. Ashario Pets is open every day of the year from 7 AM to 11 PM, and can be reached at +1-647-564-4433.

To learn more about Canadian-made brands, including those that formulate omega-3 and wellness products domestically, visit the made in Canada pet products page.

Can Puppies Take Salmon Oil?

DHA is a critical nutrient for puppy brain and eye development, making omega-3 supplementation relevant for young dogs as well. However, puppy dosing is lower than adult dosing and should always be guided by your veterinarian, particularly since many high-quality puppy foods — including those from brands like Orijen, Acana, and Open Farm carried at Ashario Pets — already include omega-3 fatty acids in their formulations. Adding extra supplementation on top of a DHA-rich diet may not always be necessary, and excess supplementation in puppies carries the same risks as in adult dogs.

Delivery Options for Ashario Pets Supplements

Ashario Pets offers same-day delivery of pet supplements, including dog wellness products, through Uber Eats, DoorDash, SkipTheDishes, Instacart, and Fantuan — making it convenient for North York, Toronto, and Greater Toronto Area dog owners to order salmon oil supplements without leaving home.

Frequently Asked Questions: Salmon Oil for Dogs in Canada

How much salmon oil should I give my dog per day in Canada?

A general guideline is approximately 20 to 55 mg of combined EPA and DHA per kilogram of body weight per day. In practical terms, this often translates to 1 to 2 mL daily for small dogs and 5 to 10 mL for large breeds, depending on product concentration. Because salmon oil products differ widely in their omega-3 content, always read the product label and consult your veterinarian for a dose tailored to your dog's specific weight and health profile.

Is salmon oil safe for dogs every day in Ontario?

Yes, daily salmon oil supplementation is generally considered safe for healthy dogs when given at appropriate doses. In Ontario's climate — where dry indoor air and cold winters can affect skin and coat health — many dog owners use it as a year-round supplement. However, long-term daily use should be discussed with your veterinarian, especially for dogs with health conditions, those on medications, or dogs already eating a fish-rich diet that provides dietary omega-3s.

What are the signs that I'm giving my dog too much salmon oil?

Common signs of oversupplementation include loose stools or diarrhea, persistent fishy breath or body odour, greasy coat, lethargy, or vomiting. If you notice any of these signs after starting salmon oil, reduce the dose and consult your veterinarian. Very high doses over a long period can also affect blood clotting and deplete vitamin E, so staying within recommended amounts is important.

Can I give my dog salmon oil if they already eat fish-based dog food?

If your dog is already eating a high-quality fish-based diet — such as those offered by brands like Acana, Orijen, Open Farm, or Zignature, all carried at Ashario Pets — they may already be receiving adequate omega-3 fatty acids from their food. Adding a full dose of salmon oil on top of a fish-rich diet may result in excess omega-3 intake. This is a conversation worth having with your veterinarian, who can assess whether supplementation adds value beyond what the diet already provides.

Where can I buy salmon oil and omega-3 supplements for dogs near North York, Ontario?

Ashario Pets at 1111A Finch Ave W, Unit 2, North York, ON M3J 2P7 carries a curated selection of dog health supplements, including omega-3 products from verified brands such as MOJO Pet Supplements, Canine Matrix, Wellytails, and The Honest Kitchen. The store is open 7 AM to 11 PM daily, every day of the year, including holidays. You can also order for same-day delivery via Uber Eats, DoorDash, SkipTheDishes, Instacart, and Fantuan. Call +1-647-564-4433 or explore the dog health and wellness collection online.