Consumer Datos en español Health Professional Other Resources Table of Contents What are omega-3 fatty acids and what do they do? How much omega-3s do I need? What foods provide omega-3s? What kinds of omega-3 dietary supplements are available? Am I getting enough omega-3s? What happens if I don't get enough omega-3s? What are some effects of omega-3s on health? Can omega-3s be harmful? Do omega-3s interact with medications or other dietary supplements? Omega-3s and healthful eating Where can I find out more about omega-3s? Disclaimer This is a general overview. For more in-depth information, see our health professional fact sheet.What are omega-3 fatty acids and what do they do?Omega-3 fatty acids are found in foods, such as fish and flaxseed, and in dietary supplements, such as fish oil.The three main omega-3 fatty acids are alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). ALA is found mainly in plant oils such as flaxseed, soybean, and canola...
