Calculadora de Ômega-3 para Cães
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
EPA+DHA_mg = peso_kg × 75 (manutenção)
About this calculator
The Omega-3 Calculator for Dogs helps pet owners and veterinarians determine the ideal EPA and DHA dose for dogs based on body weight. Omega-3 fatty acids, especially EPA and DHA, are essential for canine health, aiding in inflammation reduction, joint support, skin and coat health, and cognitive function. This calculator uses recommendations from the National Research Council (NRC) and veterinary studies: 75 mg/kg/day for maintenance and 150 mg/kg/day for therapeutic purposes.
It works simply: enter the dog's weight in kilograms and select the goal (maintenance or therapeutic). The calculator multiplies the weight by 75 or 150, respectively, providing the total EPA+DHA in milligrams per day. For example, a 10 kg dog on maintenance needs 750 mg/day of EPA+DHA. Remember to check the supplement's concentration to adjust the dose correctly.
Use this calculator when starting omega-3 supplementation for dogs with conditions like arthritis, skin allergies, kidney disease, or for general health maintenance. It is a support tool and does not replace veterinary advice. Each animal may have specific needs, and excess omega-3 can cause adverse effects such as gastrointestinal upset or prolonged clotting time.
Important precautions: always consult a veterinarian before supplementing, especially in dogs with pre-existing health conditions or on medications. Supplement quality matters; choose fish oils from sustainable sources with purity certification. Monitor the dog for reactions and adjust dosage as needed. The calculator assumes the supplement contains only EPA and DHA, so check labels to avoid overdosing.
Frequently asked questions
What is the difference between maintenance and therapeutic doses?
The maintenance dose (75 mg/kg/day) is for healthy dogs as general support. The therapeutic dose (150 mg/kg/day) is for specific conditions like arthritis or allergies, under veterinary guidance.
Can I use flaxseed oil as an omega-3 source?
No, flaxseed oil contains ALA, which has low conversion to EPA and DHA in dogs. Prefer fish or algae oils to ensure adequate EPA and DHA.
My dog weighs 5 kg, how many mg of EPA+DHA per day?
For maintenance: 5 kg × 75 = 375 mg/day. For therapeutic: 5 kg × 150 = 750 mg/day.
What if my dog has diarrhea after starting the supplement?
Reduce the dose by half and reintroduce gradually. If it persists, consult a veterinarian. You may need to switch brands or oil sources.
Does the calculator work for puppies?
Yes, but puppies have different needs. Consult a veterinarian to adjust the dose, as growth may require more omega-3.