Nutrient Guide
Fats & Omega-3, Omega-6 Fatty Acids for Dogs
Fat isn't the enemy! It provides energy, carries vitamins, and reduces inflammation. Learn what to look for in your dog's diet for optimal health.
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Fats & Omega-3, Omega-6 Fatty Acids for Dogs
Fat is the most calorie-dense nutrient, containing essential fatty acids and acting as a carrier for fat-soluble vitamins (A, D, E, K).
How Much Fat Do Dogs Need?
| Life Stage | FEDIAF Min | Typical Premium |
|---|---|---|
| Puppy | 8.5% | 14-20% |
| Adult | 5.5% | 12-18% |
| Active/Sporting | 8% | 18-25% |
| Senior | 5.5% | 10-15% |
| Pancreatitis | N/A | < 10% (low, set by your veterinarian) |
Fat provides 9 kcal/g, while protein and carbohydrates provide 4 kcal/g.
Essential Fatty Acids
- Linoleic Acid (Omega-6): vegetable oils, poultry, pork fat
- Alpha-Linolenic Acid (Omega-3 Precursor): flaxseed, canola oil
- EPA, DHA (Omega-3): cold-water fish, fish oil
Omega-3 / Omega-6 Ratio
Ideal: 5:1 or 10:1. However, many commercial foods have a 20:1 ratio or worse. High Omega-6 can promote inflammation.
Benefits of Omega-3
| Benefit | Evidence Level |
|---|---|
| Skin & Coat Quality | Strong |
| Joint Inflammation | Strong |
| Allergic Dermatitis | Strong |
| Heart Disease | Strong |
| Cancer Cachexia | Moderate |
| Cognitive Function | Moderate |
| Kidney Disease | Moderate |
Typical Omega-3 Dosages
- General supplementation (healthy dog): approx. 20-55 mg EPA+DHA/kg/day
- Skin issues, atopy, arthritis (therapeutic): approx. 50-100 mg/kg/day, as set by your veterinarian
- Upper limit: NRC (2006) safe upper limit approx. 370 mg EPA+DHA/kg body weight^0.75/day (e.g. 10 kg: ~2.1 g, 30 kg: ~4.7 g, 40 kg: ~5.9 g per day). Per-kg doses easily exceed this in large dogs; give more only under veterinary supervision
- Caution: fish oil inhibits platelet function. If your dog is on anticoagulants or NSAID pain relievers, or is scheduled for surgery, consult your vet first. High doses can cause diarrhea
Fish Oil, Krill, Flaxseed
| Source | EPA+DHA | Notes |
|---|---|---|
| Fish Oil | High | Traditional |
| Salmon Oil | High | Dog-Specific |
| Krill Oil | Moderate | Expensive, Antioxidant |
| Flaxseed Oil | ALA, not EPA/DHA | Poor Conversion |
Signs of Fatty Acid Deficiency
- Dry, Dull Coat
- Flaky Skin
- Poor Wound Healing
- Excessive Itching
Dangers of Too Much Fat
- Pancreatitis
- Obesity
- Diarrhea with Acute Overdose
Good Fat Sources
- Chicken & Turkey Fat
- Salmon & Other Fish Oils
- Egg Yolk
- Pork Fat (in moderation)
- Flaxseed (ALA)
Avoid
- Unspecified "Vegetable Oil"
- Rancid, Oxidized Fats
- Industrial Trans Fats
- Coconut Oil (in large quantities)
Storage
Natural preservatives (e.g., E-tocopherol, rosemary) are better than BHA/BHT. Natural preservation means a shorter shelf life — consume promptly.
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References
- 1.National Research Council (US), Committee on Animal Nutrition — Nutrient Requirements of Dogs and Cats. National Academies Press, Washington DC, 2006. https://doi.org/10.17226/10668 (accessed: 2026-09-10)
- 2.FEDIAF (European Pet Food Industry Federation) — Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs. FEDIAF, 2024. https://europeanpetfood.org/self-regulation/nutritional-guidelines/ (accessed: 2026-09-10)
- 3.Mueller RS, Fieseler KV, Fettman MJ, et al. — Effect of omega-3 fatty acids on canine atopic dermatitis. Journal of Small Animal Practice 45(6):293–297, 2004. https://doi.org/10.1111/j.1748-5827.2004.tb00238.x (accessed: 2026-09-10)
- 4.Roush JK, Cross AR, Renberg WC, et al. — Evaluation of the effects of dietary supplementation with fish oil omega-3 fatty acids on weight bearing in dogs with osteoarthritis. Journal of the American Veterinary Medical Association 236(1):67–73, 2010. https://doi.org/10.2460/javma.236.1.67 (accessed: 2026-09-10)
This is general information and does not replace a veterinary diagnosis.
This guide was compiled based on the expert input of Reka Fazekas-Birizdo canine nutritionist.
Certified Canine Nutritionist