Fish Oil Calculator for Dogs - Safe EPA + DHA Omega-3 Dose by Weight
Calculate a safe daily EPA + DHA omega-3 dose for your dog based on weight and goal - supports skin, coat, joints and overall inflammation control.
Fish Oil (EPA+DHA) Dose
Daily EPA + DHA
1134 mg
For estimation only. Always confirm with your vet before starting a supplement.
Omega-3 fatty acids - specifically EPA and DHA from fish oil - are one of the most evidence-backed supplements for dogs. They support skin and coat, reduce joint inflammation, and contribute to brain and heart health.
Our fish oil calculator gives you a safe daily EPA + DHA target based on your dog's weight and what you are supplementing for.
Why EPA + DHA, not just fish oil
Not all fish oils are equal. What matters is the combined milligrams of EPA and DHA per serving - not total fish oil. Check the supplement label and use the EPA + DHA number, not the total oil weight.
Typical maintenance dose is around 50 mg/kg of EPA + DHA. Skin issues benefit from around 75 mg/kg. Joint support and significant inflammation may need closer to 100 mg/kg.
Choosing a quality fish oil
Look for products that are molecularly distilled or third-party tested for heavy metals and PCBs. Liquid oils generally provide more EPA + DHA per dollar than soft gels, and they are easier to pour over food.
Refrigerate after opening. Smell every bottle before serving - rancid oil smells sharp and fishy and can do more harm than good.
When to talk to your vet
Very high doses can affect blood clotting. Always confirm with your vet before starting, especially if your dog is on other medications, has a history of pancreatitis, or is scheduled for surgery.
Frequently asked questions
Can I give my dog human fish oil?
Yes, the active ingredients are the same - but match the dose to your dog's weight and verify the product is free of added flavours like xylitol.
How long until I see results?
Coat improvements often appear in 4-6 weeks. Joint benefits typically take 8-12 weeks of consistent daily dosing.
Can I overdose fish oil?
Yes - excessive long-term doses can cause loose stools, weight gain and clotting issues. Stick to weight-based dosing.
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