
Fatty acids are essential nutrients for dogs, and they can be added to their diet in various ways. Dogs require omega-3 and omega-6 fatty acids, which can be found in fish oil supplements, flaxseed, and certain types of dog food. The appropriate amounts of these fatty acids are vital for skin and coat health, joint health, and overall well-being. It is important to consult with a veterinarian to determine the right dosage and type of fatty acid supplement, especially for older dogs or those with specific medical conditions. The addition of fatty acids can improve a dog's health and appearance, but excessive amounts should be avoided as they can have detrimental effects.
How to add fatty acids to a dog's diet
| Characteristics | Values |
|---|---|
| Purpose of adding fatty acids | Improve skin and coat health, support digestive well-being, maintain energy levels, and promote brain and eye development |
| Types of fatty acids | Omega-3 (EPA, DHA, ALA), Omega-6 (linoleic acid), and Gamma-Linolenic Acid (GLA) |
| Sources of fatty acids | Fish oil, flaxseed, salmon, mackerel, sardines, chicken fat, pork fat, safflower oil, sunflower oil, and peanut butter |
| Recommended dosage | 50-75 mg EPA + DHA per kg body weight, with a 1:4 ratio of Omega-3 to Omega-6 |
| Precautions | Consult a veterinarian, especially for dogs with medical conditions, and be mindful of potential side effects like gastrointestinal issues or impaired health |
| Commercial options | Pet food brands like Hill's Science Diet offer products rich in essential fatty acids |
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What You'll Learn

Omega-3 fatty acids: EPA and DHA
Omega-3 fatty acids are essential "good" fats that help your dog's body and brain. Dogs, like humans, cannot produce omega-3 fatty acids on their own and must obtain them from their diet. Omega-3 fatty acids can be found in cold-water fish, shellfish, plant and nut oils, and flaxseed.
Two common and beneficial fatty acids added to pet food are Docosahexaenoic acid (DHA) and Eicosapentaenoic acid (EPA). DHA, a component in omega-3 fatty acid, aids in the proper brain and eye development of puppies. DHA may also improve cognitive function in older dogs dealing with canine cognitive dysfunction. Research has shown that omega-3 fatty acids can help treat canine arthritis and chronic kidney disease. Fish oil is a commonly used supplement in dogs and is added to many pet foods. The most efficient way to increase EPA and DHA in a dog's diet is to provide these fatty acids in a supplemental form, such as fish oil.
The Association of American Feed Control Officials (AAFCO) requires a ratio of 30:1 omega-6 to omega-3. However, some commercial dog foods may be higher in omega-6 and comparatively low in omega-3, which can potentially lead to health problems. It is important to ensure the correct dietary ratio between the two. The combination of EPA and DHA should be in a 1:4 ratio with omega-6 fatty acids (though a 1:1 to 1:10 ratio is still fine for most healthy dogs).
Supplementation with about 70 mg of EPA + DHA per kg of body weight per day for 16 weeks has been shown to significantly increase the omega-3 index and improve pain and quality of life scores in smaller dogs. However, excessive supplementation can have detrimental effects, including gastrointestinal issues, decreased platelet aggregation, alterations in immune function, decreased wound healing, and nutrient-drug interactions. Therefore, it is important to consult with a veterinarian before adding any supplements to your dog's diet.
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Omega-6 fatty acids
Linoleic acid, an omega-6 polyunsaturated fatty acid, is considered the most important essential fatty acid for dogs. It is crucial for skin health, as it maintains the skin's outermost water barrier, and is used to create many other essential molecules in the body. A deficiency in omega-6 fatty acids can lead to issues such as flaky and itchy skin, reproductive problems, poor growth, and nervous system abnormalities.
The National Research Council (NRC) recommends a ratio of 2.6:1 to 26:1 of omega-6 to omega-3 fatty acids in a dog's diet. Balancing these fatty acids is important because they are metabolised into substances that affect inflammation in the body. While omega-3 fatty acids are known for their anti-inflammatory properties, omega-6 fatty acids trigger the release of pro-inflammatory hormones, which are crucial for activating appropriate immunisation processes when a dog experiences heat, redness, swelling, pain, or loss of function.
When adding omega-6 fatty acids to your dog's diet, it is important to maintain a balanced ratio of omega-3 to omega-6. Excessive amounts of added oils can decrease the palatability of the diet, so it is generally recommended to keep added oils under 1-2 tablespoons for a moderately sized dog. For dogs that require higher amounts of omega-6 fatty acids, consider using a combination of whole foods and oils, such as including sardines, mackerel, or salmon in their diet.
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Fish oil supplements
Before choosing which type of fish oil to feed your dog, consider their breed, size, weight, and overall health. Speak with your veterinarian first. Fish oil supplements may become part of a long-term plan or provide a temporary nutritional boost to your dog's diet. It is important to protect fish oil from heat, light, and air. Buy your fish oil in dark bottles and store it in the refrigerator. Fish oil is susceptible to oxidation and can become rancid, so make sure to throw it away if it has an "off" odor.
The amount of fish oil you give your dog should be appropriate for their size, weight, and age. Rather than following dosage guidelines on the package, ask your vet how much fish oil is suitable for your dog. The dosage will also depend on the concentration of the fish oil. For example, one source recommends using one soft gel for every 20 lbs of body weight, while another source recommends the following daily dose:
> 0-15 lbs: 1/2 pump or 1/4 tsp
> 15-25 lbs: 1 pump or 1/2 tsp
> 25-50 lbs: 2 pumps or 1 tsp
> 50-75 lbs: 3 pumps or 1.5 tsp
> 75+ lbs: 4 pumps or 2 tsp
It is recommended to start with half the suggested amount and gradually increase to the suggested daily amount. Amounts can be split between morning and evening. Mix with meals.
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Fatty acids for skin and coat health
Fatty acids are essential for dogs' skin and coat health. Dogs require omega-3 and omega-6 fatty acids, which can be obtained through their diet. Omega-3 fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are crucial for healthy brain development and visual acuity in puppies. They also help reduce inflammation and boost the immune system, keeping the coat soft and shiny. Omega-6 fatty acids, including linoleic acid, are also essential for dogs and can be found in pork fat, chicken fat, and various vegetable oils.
The appropriate balance of omega-3 and omega-6 fatty acids is vital for maintaining optimal health. The recommended ratio of EPA to omega-6 fatty acids is 1:4, although a ratio of 1:1 to 1:10 is generally considered acceptable for healthy dogs. It is important to note that excessive amounts of omega-3 or omega-6 fatty acids can lead to an inflammatory response. Therefore, dog owners should carefully monitor the amount of fatty acids in their dog's diet and consult a veterinarian for guidance on appropriate dosage.
One way to ensure adequate intake of omega-3 fatty acids is by adding fish oil supplements to the dog's diet. Fish oil is rich in omega-3 fatty acids and can be administered in pill form or poured directly onto the dog's food. Other sources of omega-3 fatty acids include fish, flaxseed, and certain nuts like peanuts. These foods can be incorporated into the dog's meals or given as treats.
For dogs with skin issues or dull coats, omega-6 fatty acid supplementation may be beneficial. Gamma-linolenic acid (GLA), in particular, can help address coat and skin health issues that may arise as dogs age due to diminished liver function and decreased GLA production. Dog owners should consult their veterinarian before starting any fatty acid supplementation and carefully select quality supplements from reputable brands.
In addition to direct fatty acid supplementation, dog owners can choose commercially available dog food that is already rich in omega-3 and omega-6 fatty acids. These foods provide a convenient and economical solution to ensuring adequate fatty acid intake. However, it is important to read the ingredient lists and supplement information to understand the specific fatty acid content and ensure it meets the dog's individual needs.
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Fatty acids for older dogs
Fatty acids are an essential nutrient for dogs and can provide many benefits. Omega-3, omega-6, and omega-9 fatty acids are all considered healthy fats when consumed in the right amounts and proportions. Omega-3 and omega-6 fatty acids are essential fatty acids, meaning they cannot be synthesized by the dog's body and must be obtained from their diet. Omega-3 fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are found in cold-water fish, shellfish, plant and nut oils, flaxseed, and algae. Omega-6 fatty acids, on the other hand, are more readily available in a dog's diet and are commonly found in animal and plant sources, including commercial dog foods.
For older dogs, fatty acids can provide several health benefits. DHA, a component of omega-3 fatty acids, may improve cognitive function in older dogs experiencing cognitive decline. Additionally, omega-3 fatty acids can help treat canine arthritis and chronic kidney disease, which may be more prevalent in older dogs. Fatty acids also support heart health, promote a healthy coat, reduce itchy and flaky skin, and strengthen the immune system.
When adding fatty acids to an older dog's diet, it is important to maintain a proper balance between omega-3 and omega-6 fatty acids. Most dog foods contain higher levels of omega-6 than omega-3, so additional omega-3 fatty acids may be required to achieve the right balance. This can be done through fatty acid supplements, such as fish oil, or by feeding foods rich in omega-3 fatty acids, such as cold-water fish. However, it is important to consult a veterinarian before adding supplements to ensure the appropriate dosage and to avoid potential negative interactions with existing medical conditions.
The amount of fatty acids added to an older dog's diet may depend on their overall health and specific needs. For example, dogs prone to weight gain may require lower amounts of fatty acids, while active dogs may benefit from higher amounts. Additionally, certain medical conditions may require specific doses of fatty acids, so it is important to consult a veterinarian to determine the appropriate amount for an older dog's individual needs.
In summary, fatty acids, particularly omega-3 and omega-6 fatty acids, are essential for older dogs' health and well-being. They provide numerous benefits, including improved cognitive function, arthritis relief, and heart health. By adding fatty acid supplements or omega-rich foods to their diet and maintaining a proper balance between omega-3 and omega-6, older dogs can maintain a healthier and more comfortable life.
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Frequently asked questions
Fatty acids are essential for dogs with skin issues, dull coats, growing puppies, elderly dogs, and dogs predisposed to joint issues. They also help reduce inflammation, boost the immune system, and keep your pet's coat shiny and soft.
Essential fatty acids can be found in fish, flaxseed, or peanuts. Other sources include chicken fat, pork fat, safflower, sunflower, corn, and soybean oils.
Excessive fatty acids can cause toxicity and abnormal vitamin E plasma levels. Omega-3 fatty acid supplementation can also result in gastrointestinal signs (i.e. vomiting or diarrhea), decreased platelet aggregation, alterations in immune function, decreased wound healing, and nutrient-drug interactions.











































