What Are Omega-6 Fatty Acids? An Essential Type of Fat
Omega-6 fatty acids are a family of polyunsaturated fats that the body cannot make on its own. They must be obtained from food and play roles in brain function, skin and hair growth, and inflammation.
At a glance
- Term
- Omega-6 Fatty Acids
- What it is
- Essential polyunsaturated fat
- Section
- Food and nutrition
- Also called
- n-6 fatty acids
- In one line
- It’s a type of essential fat you get from foods like nuts, seeds, and vegetable oils that your body needs to function.
What Omega-6 Fatty Acids means
Omega-6 fatty acids are a type of polyunsaturated fat. They are considered ‘essential’ because your body can’t produce them, so you must get them from the foods you eat. The most common omega-6 is linoleic acid, which the body can convert into other omega-6s. These fats are used for energy, but they also play a key role in making signaling molecules that help regulate bodily processes. This includes things like the immune system’s inflammatory response, blood clotting, and brain function. They are a necessary component of a healthy diet.
You can find omega-6 fatty acids in a wide variety of foods. They are abundant in many plant-based oils, including soybean, corn, safflower, and sunflower oils. Because these oils are widely used in food manufacturing, omega-6s are common in many packaged and processed foods, from salad dressings and mayonnaise to cookies and chips. Other good sources include nuts like walnuts and pecans, seeds such as sunflower and pumpkin seeds, and some animal products like poultry and eggs. Due to their presence in so many common foods, they are a significant part of a typical Western diet.
Much of the conversation around omega-6 fatty acids involves their relationship with omega-3 fatty acids. Both are essential polyunsaturated fats, but they often have opposing effects. For instance, some substances made from omega-6s tend to be pro-inflammatory, while those from omega-3s are generally anti-inflammatory. A healthy inflammatory response is crucial for healing, but a diet with a very high ratio of omega-6s to omega-3s is thought by some to promote excessive inflammation. The focus is less on demonizing omega-6s and more on achieving a better balance between the two.
For everyday health, the goal isn’t to avoid omega-6s, as they are vital for normal functioning. Instead, it’s helpful to be mindful of your overall dietary fat sources. This might mean being aware of the amount of processed foods and certain vegetable oils in your diet while actively including more omega-3-rich foods. Sources of omega-3s include fatty fish like salmon and mackerel, flaxseeds, chia seeds, and walnuts. Emphasizing whole foods and a varied diet helps ensure you get a healthy balance of all essential nutrients, including both types of fatty acids.
What public guidance says
The American Heart Association recommends eating fish, particularly fatty fish, at least two times a week, which provides omega-3 fatty acids.
How to Get Omega-6s in Your Diet
- Include nuts and seeds like walnuts, sunflower seeds, and pumpkin seeds in your diet as snacks or additions to meals.
- Use vegetable oils such as soybean, corn, and safflower oil in moderation for cooking and in dressings.
- Recognize that many processed and packaged foods, from salad dressings to baked goods, are made with oils high in omega-6s.
- Focus on balancing your intake by also including sources of omega-3 fatty acids, such as fatty fish, flaxseeds, and chia seeds.
Omega-6 Fatty Acids vs. similar terms
| Compared with | How Omega-6 Fatty Acids differs | What the other term means |
|---|---|---|
| Omega-3 Fatty Acids | Omega-6 fatty acids are a family of essential fats that are precursors to molecules generally involved in pro-inflammatory responses. | Omega-3 fatty acids are a different family of essential fats primarily known for their role in producing anti-inflammatory compounds. |
Common misconceptions
- Myth: All omega-6s are bad and cause inflammation. Omega-6s are essential for the body and play a vital role in the immune response. While some compounds derived from them can be pro-inflammatory, this is a necessary bodily process. The health discussion is more about the overall balance with anti-inflammatory omega-3s.
- Myth: You should try to completely eliminate omega-6s from your diet. Since omega-6s are essential fatty acids, you must get them from food for your body to function correctly. The goal is not elimination but rather moderation and achieving a better balance with omega-3s.
Related terms
When to bring in a professional
If you have questions about your fat intake or overall diet, a registered dietitian can provide personalized advice.
- You have a health condition like heart disease or an inflammatory disorder and want to know how your diet can support your health.
- You are considering making significant changes to your diet and want to ensure you are meeting all your nutritional needs.
- You are confused by conflicting information about dietary fats and want evidence-based guidance.
- You want help planning meals that balance different types of fats for your specific lifestyle.
How this entry was made: drafted with AI assistance from general, widely published definitions, checked in a separate verification pass for invented numbers and claims, and edited by the Millennials Wellness editors. General information only, not medical, financial or legal advice. Last checked October 2026. Our ground rules · Back to the glossary