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Which foods provide alpha-linolenic acid?
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Fat
Palmitic acid is one of the most prevalent fatty acids occurring in the oils and fats of animals; it also occurs naturally in palm oil. It is generated through the addition of an acetyl group to multiple malonyl groups connected by single bonds between carbons. This structure forms a saturated acid—a major component of solid glycerides.
Alpha-linolenic acid (ALA) is an essential omega-3 fatty acid that the body can convert into longer-chain omega-3s, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).1
Several plant-based foods and oils are excellent sources of ALA:
- Seeds and Oils: Flaxseed is an outstanding source of ALA, and linseed oil contains the highest level of ALA of any vegetable oil. Other beneficial sources include canola oil and soybean oil.21
- Nuts: Walnuts, hazelnuts, and almonds provide ALA.1
- Vegetables and Other Sources: Dark green leafy vegetables, such as spinach, and egg yolk also contribute to dietary intake.1
While fatty fish are rich in EPA and DHA, they are distinct from the plant-derived ALA sources listed above. Maintaining an adequate intake of these essential nutrients is important for overall health, as they facilitate various metabolic processes.13