Best Omega & Calming Supplements for Pets 2026

What your pet eats affects how they look, move, and behave. Omega fatty acids—especially the long-chain omega-3s EPA and DHA from fish or salmon oil—are among the most widely used supplements in veterinary nutrition because of their broad effects on coat condition, joint comfort, and brain function. This guide explains what these nutrients do, how to choose a quality product, how to add supplements to your pet’s diet, common mistakes to avoid, and practical FAQs to help you get started.

How omega fatty acids work

Omega fatty acids are dietary fats that influence inflammation, skin and coat health, cell membrane function, and neurological development. The most relevant types for pets are:

• Omega-3 (EPA & DHA) — Found mainly in fish oils. These long-chain fats are associated with anti-inflammatory effects and support for skin, coat, joints, and brain function.
• Omega-6 (LA & GLA) — Common in many pet foods and plant oils; important for skin barrier and coat, but balancing omega-6 with omega-3 is important.
• Omega-9 — A non-essential fat found in olive oil and some fish oils; contributes to general fat metabolism and heart health.

EPA:DHA — what to look for

Both EPA and DHA are valuable. EPA tends to be emphasized when reducing inflammatory responses is the goal, while DHA is important for neurological and visual development. Look for clear labeling of EPA and DHA amounts so you can match a product to your pet’s needs.

Selection criteria: choosing a quality omega supplement

Not all supplements are created equal. Use these practical criteria when evaluating options:

• Source: Prefer fish or salmon oil derived from wild-caught sources when available. Source transparency is a good sign of manufacturing standards.
• Third-party testing: Look for products that publish third-party purity or potency test results to confirm levels of EPA/DHA and to check for contaminants.
• Clear EPA/DHA labeling: The supplement should list EPA and DHA in milligrams per serving — not just a lump-sum "omega-3" number.
• Formulation and dose form: Liquids are easy to add to food; chews or capsules may be simpler for dosing certain pets. Choose a form your pet will accept.
• Stability & packaging: Oils oxidize with exposure to air and light. Dark bottles, pumps that limit oxygen exposure, and clear "use by" guidance are helpful.
• Palatability: Many pets enjoy fish-oil flavor, but if your pet is picky, a chew or flavored option may improve adherence.
• Veterinary guidance: If your pet is on medications (for example, blood thinners), or has a chronic condition, consult your veterinarian before starting any supplement.

Practical dosing guide

The following dosing guide is a common starting point for liquid fish oil. Use label directions and your veterinarian’s advice to refine dosing for your pet’s age, health status, and specific needs.

Pet Weight	Daily Fish Oil Dose (approx.)	Notes
Under 10 lbs	1/4 tsp (≈1.25 ml)	Small dogs and most cats
10–30 lbs	1/2 tsp (≈2.5 ml)	Small to medium dogs
30–60 lbs	1 tsp (≈5 ml)	Medium to large dogs
Over 60 lbs	2 tsp (≈10 ml)	Large breeds; consult your vet for giant breeds

Tip: When switching to a new supplement, start at about half the recommended dose for the first week and increase to the full dose to reduce the chance of digestive upset.

How to add omega supplements to your pet's diet

• Drizzle over kibble — Liquid fish oil mixes into dry food easily and is often accepted without fuss.
• Mix into wet food — Strong-smelling wet food can conceal any new oil flavor for picky eaters.
• Use chews or capsules — For pets that dislike liquids, chews or capsules that can be hidden in a treat work well.
• Storage — Refrigerate oils after opening when the label recommends it. Use within the manufacturer’s suggested timeframe to avoid rancidity.

Mistakes to avoid

• Over-supplementing — More is not always better. Follow label directions and veterinary advice; excessive fat intake can cause digestive issues and other concerns.
• Ignoring product transparency — If EPA/DHA amounts and testing info are not available, consider a more transparent brand.
• Poor storage — Oils that are warm, light-exposed, or old can oxidize and develop off-flavors and reduced potency.
• Neglecting omega balance — Many commercial diets already supply omega-6; adding omega-3s without considering overall fat balance is less effective than addressing both.
• Not consulting your vet — Pets with medical conditions or on certain medications should have any new supplement approved by their healthcare provider.

Common questions

How long before I see a difference?

Improvements in coat condition and skin may be noticeable within a few weeks, whereas changes in joint comfort can take longer. Consistent daily dosing is important; timelines vary by the pet and the issue being addressed.

Is salmon oil safe for cats?

Salmon oil is commonly used for cats and can help support coat and skin condition. Follow dosing guidelines for your cat’s weight and consult your veterinarian if you have concerns.

Can I give fish oil every day?

Daily supplementation is a common practice. Use the product’s recommended dose and speak to your veterinarian for personalized guidance, especially if your pet takes other medications.

Products to consider (selection examples)

Below are some commonly available product types and examples to help you identify what to look for when shopping. These examples are presented for reference; review labels, dosing, and test results before purchasing.

• Norwegian salmon oil in liquid form — convenient for sprinkling over food and usually labeled with EPA/DHA content.
• Multi-omega formulas (Omega 3,6,9) — provide a broader mix of fatty acids; check EPA/DHA amounts to ensure adequate omega-3 levels.
• High-volume salmon oils — larger bottles for multiple-pet households or long-term use; pay attention to stability and use-by guidelines.
• Calorie-boosting supplements for recovery — liquid formulas designed to support weight regain under veterinary guidance.

For a full range of vetted options, browse our Wellness Supplements collection: Wellness Supplements

Practical takeaway

Omega supplements—especially fish- or salmon-based products with clear EPA and DHA labeling—are a practical, widely used addition to support coat, joint, and brain health in pets. Choose products with transparent sourcing and testing, start at a conservative dose, store oils properly, and check with your veterinarian for tailored recommendations.