What are Polyunsaturated Fats?

Monounsaturated Fats-Polyunsaturated Fats
three women with different body types


Polyunsaturated fats are a healthy type of dietary fat found in vegetable oils, nuts, seeds and seafood. They reduce inflammation when eaten in moderation.


  • Polyunsaturated fats provide essential fats the body cannot produce itself. They include omega-3 and omega-6 fatty acids.
  • They are liquid at room temperature due to chemical structure. Plant and fish sources provide polyunsaturated fats.
  • Polyunsaturated fats help lower LDL cholesterol levels and heart disease risks when eaten in place of saturated fats.
  • Consume them in recommended portions as excessive omega-6 intake can contribute to inflammation.


  • Walnuts, salmon, chia seeds and sunflower seeds.
  • Vegetable oils like canola, sunflower and soybean oil.

Related Terms

  • Monounsaturated fats, omega fatty acids, lipids

Common Questions

  • Are polyunsaturated fats bad? No, they are healthy and necessary fats in moderation.
  • What’s the difference between omega-3 and omega-6? Both are polyunsaturated but omega-3s are more anti-inflammatory.

Do Not Confuse With

  • Saturated fats – Unhealthy fats that raise cholesterol levels.
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