Omega-3 fatty acids are essential polyunsaturated fats necessary for various bodily functions, including heart and brain health. They cannot be synthesized by the body and must be obtained through diet or supplements.
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There are three main types of omega-3 fatty acids: ALA (alpha-linolenic acid), EPA (eicosapentaenoic acid), and DHA (docosahexaenoic acid).
Omega-3s play a crucial role in reducing inflammation and may help lower the risk of chronic diseases such as heart disease, cancer, and arthritis.
ALA is primarily found in plant sources like flaxseeds, chia seeds, and walnuts, while EPA and DHA are predominantly found in fish and other seafood.
The recommended daily intake of omega-3 varies depending on age, gender, and health conditions but typically ranges from 250 to 500 mg of combined EPA and DHA for most adults.
Omega-3 fatty acids contribute to the structure of cell membranes and are vital for brain development and function.
Review Questions
What are the three main types of omega-3 fatty acids?
Why is it important to include omega-3s in your diet?
Which foods are rich sources of ALA, EPA, and DHA?
Related terms
Saturated Fats: A type of fat that is solid at room temperature and found in animal products like meat and dairy.
Polyunsaturated Fats: Fats with multiple double bonds between carbon atoms; they include essential fats like omega-3s.
Trans Fats: Artificially created fats used in some processed foods that can increase the risk of heart disease.