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Fish oil is one of the most recommended supplements for dogs: rich in omega-3 fatty acids (EPA and DHA), it provides concrete benefits when used correctly. Let's see how, how much, and in what cases.

What it really contains

Quality fish oil is rich in:

  • EPA (eicosapentaenoic acid): anti-inflammatory action.
  • DHA (docosahexaenoic acid): important for brain, eyes, skin.
  • Vitamins A and D: in some oils (cod liver).

The benefits

1. Skin and coat

The dog with dermatitis, itching, or dull fur is the first to benefit. In 4-6 weeks, a shinier coat and less dandruff can be noticed.

2. Joints

The anti-inflammatory action helps older dogs, athletic dogs, or those with joint problems. Often used as part of a joint wellness protocol.

3. Heart

Omega-3s support the cardiovascular system. Particularly useful in breeds predisposed to heart disease.

4. Nervous system

DHA is important for growing puppies (brain development) and older dogs (cognitive decline).

5. Allergies

Modulates the inflammatory response, useful in allergic dogs.

Dosage

In general: 20-55 mg of combined EPA+DHA per kg of body weight per day. To give a practical idea:

  • 10 kg dog: ~200-500 mg EPA+DHA.
  • 25 kg dog: ~500-1,350 mg.
  • 40 kg dog: ~800-2,200 mg.

Always start with low doses and gradually increase. For therapeutic dosages (e.g., severe dermatitis, joint problems), the veterinarian may recommend higher doses.

Which product to choose

  • Pet-specific fish oil: the safest.
  • Alternatively, high-quality human-grade oil: but check for the absence of flavorings, sweeteners, and unsuitable added vitamins.
  • Capsules or liquid: the liquid should be poured over food, and the capsules can be pierced or swallowed whole.

Storage

Keep the product cool, away from light and heat. Once opened, store it in the fridge. Rancid oil is harmful!

Contraindications

  • Dogs with coagulation disorders (omega-3s thin the blood).
  • Before surgical procedures (suspend 7-10 days prior).
  • Prolonged overdoses: risk of a soft stomach.
  • Allergies to fish (rare but present).

When to see results

  • Shiny coat: 4-6 weeks.
  • Reduction in itching: 8-12 weeks.
  • Joint improvement: 8-12 weeks.

The most important thing

Fish oil is a valuable ally for your dog's well-being, especially for the skin/coat, joints, and cardiovascular-nervous system. Choose quality products, respect the dosages, and consult your veterinarian for therapeutic doses.

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