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10 Best Fish Oil Supplements For Dogs 2025 in the United States

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Our Top Picks

#1

Winner

Zesty Paws Salmon Omega Oil Hemp for Dogs and Cats with Wild Alaskan Salmon Oil Omega 3 and 6 Fatty Acids with EPA DHA for Pets Supports Normal Skin Moisture and Immune System Function 32oz

Rating
10.0
Chosen by1,337
Omega-3 Fatty Acids
Purity and Quality
Dosage and Concentration

Most important from
69298 reviews

Omega-3 Fatty Acids
Transforms pet fur to be softer, shinier, and significantly reduces scratching.
Purity and Quality
Pets eagerly accept the supplement, indicating a palatable taste without any lingering fishy odor.
Dosage and Concentration
The convenient pump dispenser allows for mess-free and precise dosing.

Zesty Paws Salmon Omega Oil Hemp is a liquid supplement for dogs and cats that combines Wild Alaskan Salmon Oil with Hemp Seed Oil. It offers a good source of omega-3 fatty acids, including EPA and DHA, which are important for maintaining healthy skin, coat, heart, and immune function in pets. The addition of hemp seed oil brings stearidonic acid (SDA), which may further support immunity. This blend is a plus for pet owners looking for more than just basic fish oil.

The product is easy to dose with a pump bottle, and the recommended amount is clearly provided based on your pet’s weight. It’s suitable for all breeds and helps maintain normal skin moisture, which can be especially helpful for pets with dry or sensitive skin. With a large 32-ounce size, it offers good value and lasts a while.

This supplement is well suited for pet owners wanting a natural, multi-benefit omega oil that supports skin and immune health without complicated dosing.

Rating
10.0
Chosen by1,337
Omega-3 Fatty Acids
Purity and Quality
Dosage and Concentration

Most important from
69298 reviews

Omega-3 Fatty Acids
Transforms pet fur to be softer, shinier, and significantly reduces scratching.
Purity and Quality
Pets eagerly accept the supplement, indicating a palatable taste without any lingering fishy odor.
Dosage and Concentration
The convenient pump dispenser allows for mess-free and precise dosing.
#2

Zesty Paws Wild Alaskan Omega-3 Blend Pollock + Salmon Oil for Dogs and Cats- Skin and Coat Support, Omega 3 Supplement for Pets, 32oz

Rating
10.0
Omega-3 Fatty Acids

Most important from
69298 reviews

Omega-3 Fatty Acids
An excellent supplement that keeps my dog's coat shiny and prevents itching.

Zesty Paws Wild Alaskan Salmon Oil is a well-rounded supplement designed to support the skin and coat health of both dogs and cats. Packed with Omega-3 fatty acids, including EPA and DHA, this product boosts the immune system, and aids in joint and heart function.

The supplement comes in an easy-to-use oil form, which makes it simple to mix with pet food without dealing with capsules. The pump dispenser ensures accurate dosing based on your pet's weight, making it convenient for pet owners to administer the right amount. The oil is sourced from Wild Alaskan Salmon, which is known for its high Omega-3 content, contributing to its purity and quality.

Potential buyers should note that the product's fishy smell might be off-putting to some pets and owners. Additionally, while it suits all life stages, it may require an adjustment period for pets not accustomed to fish oil in their diets. This supplement is ideal for pet owners looking for an easy-to-administer product that significantly benefits their pets' skin, coat, and health.

Rating
10.0
Omega-3 Fatty Acids

Most important from
69298 reviews

Omega-3 Fatty Acids
An excellent supplement that keeps my dog's coat shiny and prevents itching.
#3

Nordic Naturals Omega-3 Pet, Unflavored - 16 oz - 1380 mg Omega-3 Per Teaspoon - Fish Oil for Large to Very Large Dogs with EPA & DHA - Promotes Heart, Skin, Coat, & Immune Health

Rating
7.9
Form of Supplement

Most important from
11778 reviews

Form of Supplement
Trustworthy and easy to administer, this fish oil supplement has noticeably improved my 18-year-old kitty's mobility and coat health.

Nordic Naturals Omega-3 Pet oil supplement is a high-quality liquid fish oil designed specifically for large to very large breed dogs. Each teaspoon provides 1518 mg of Omega-3 fatty acids, including EPA and DHA, which support heart, skin, coat, joint, and immune health. This product uses triglyceride molecular form for optimal absorption, ensuring your pet gets the most benefit from the supplement.

The oil is sourced from fresh, wild-caught, omega-rich fish and is crafted with non-GMO, gluten- and dairy-free ingredients without artificial colors, flavors, or preservatives, ensuring maximum purity and quality. Nordic Naturals also emphasizes ethical and sustainable practices, with Friend of the Sea certification and manufacturing in a zero-waste facility powered by biofuel. The supplement is unflavored, making it easy to add to your dog’s food without altering the taste.

The liquid form is convenient for mixing with food, and the bottle should be refrigerated and used within three months of opening. Potential drawbacks include the need for refrigeration and the relatively short shelf-life once opened. Additionally, the liquid form might not be as convenient as capsules for some pet owners. This supplement is an excellent choice for pet owners seeking a premium Omega-3 supplement for their large breed dogs.

Rating
7.9
Form of Supplement

Most important from
11778 reviews

Form of Supplement
Trustworthy and easy to administer, this fish oil supplement has noticeably improved my 18-year-old kitty's mobility and coat health.

Buying Guide for the Best Fish Oil Supplements For Dogs

Choosing the right fish oil supplement for your dog can be a bit overwhelming given the variety of options available. Fish oil supplements can provide numerous health benefits for your dog, including improved coat health, reduced inflammation, and support for heart and joint health. To make an informed decision, it's important to understand the key specifications and how they relate to your dog's needs.
Omega-3 Fatty AcidsOmega-3 fatty acids are essential nutrients that play a crucial role in maintaining your dog's overall health. They help reduce inflammation, support heart health, and improve skin and coat condition. The two main types of omega-3s in fish oil are EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). Higher concentrations of EPA and DHA are generally more beneficial. For dogs with specific health issues like arthritis or skin conditions, a supplement with higher levels of these fatty acids may be more appropriate.
Purity and QualityPurity and quality are critical when selecting a fish oil supplement for your dog. Contaminants like heavy metals, PCBs, and other toxins can be harmful. Look for products that are third-party tested for purity and quality. Certifications from organizations like the National Animal Supplement Council (NASC) can also be a good indicator of a high-quality product. Ensuring the supplement is free from harmful substances is essential for your dog's safety.
Form of SupplementFish oil supplements come in various forms, including liquid, capsules, and chews. Liquid forms can be easily mixed with food, making them a good option for picky eaters. Capsules can be convenient for precise dosing, especially for larger dogs. Chews can be a treat-like option that some dogs may prefer. Consider your dog's preferences and ease of administration when choosing the form of the supplement.
Source of Fish OilThe source of the fish oil can affect its quality and sustainability. Common sources include salmon, sardines, anchovies, and mackerel. Wild-caught fish are generally considered to be of higher quality than farmed fish. Additionally, sustainably sourced fish oil is better for the environment. If sustainability is important to you, look for products that are certified by organizations like the Marine Stewardship Council (MSC).
Dosage and ConcentrationThe appropriate dosage of fish oil depends on your dog's size, weight, and specific health needs. Higher concentrations of omega-3s mean you can give a smaller amount to achieve the desired effect. Always follow the manufacturer's dosage recommendations and consult with your veterinarian to determine the right dosage for your dog. Overdosing can lead to side effects, so it's important to get this right.
Additional IngredientsSome fish oil supplements contain additional ingredients like vitamins, minerals, or other beneficial compounds. While these can provide extra health benefits, it's important to ensure they are safe and necessary for your dog. Avoid products with artificial additives, preservatives, or fillers. If your dog has specific health conditions, consult with your veterinarian to determine if additional ingredients are beneficial.

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