Cod Liver Supplements for Dogs

Reviewed by Dr. Angela Beal, DVM

Cod liver oil for dogs is a marine-based supplement that provides a combination of omega-3 fatty acids along with vitamins A and D. It’s often used in small, controlled amounts to support skin health, coat condition, and overall wellness. Because it contains both essential fatty acids and fat-soluble vitamins, cod liver oil can be a more concentrated option compared to standard fish oil, which makes proper portioning especially important.

At Chewy, you can find cod liver oil primarily in liquid form, often included in skin and coat formulas or broader omega-3 supplements. These are typically designed to be added directly to food, making them easy to incorporate into your dog’s daily routine. Some blends also pair cod liver oil with other omega-3 sources or nutrients for more balanced support. Here are some things to consider when choosing cod liver oil for your pup:

• Omega-3 support: Provides EPA and DHA to support skin, coat, and joint health
• Vitamin content: Naturally contains vitamins A and D, which support overall wellness
• Concentrated formula: More nutrient-dense than standard fish oil, so portion size matters
• Liquid format: Commonly added to food for easy daily use
• Balanced use: Best used in moderation as part of a complete diet

Cod liver oil for dogs can be a helpful addition for supporting skin and coat health, especially when used consistently in the right amount. Because it contains fat-soluble vitamins, it is important to avoid over-supplementation and follow product guidelines carefully. If you’re unsure whether it’s the right fit for your dog, your veterinarian can help guide the best approach.