Alpha-Linolenic Acid (ALA)

Alpha-linolenic acid is a short-chain omega-3 that is hound in high concentrations of flaxseed oil. ALA inhibits the enzyme that decreases the production of the precursors of both “good” and “bad” eicosanoids. ALA has no ability to inhibit the synthesis of AA. This may be why high intakes of ALA have been linked to increases in prostate cancer. ALA can be theoretically synthesized into EPA, but the process is very inefficient among humans.

Alpha-linolenic acid, or ALA, is an essential fatty acid, which means that it is essential to human health but cannot be manufactured by the body. For this reason, ALA must be obtained from food. ALA, as well as the fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA or DHEA), belongs to a group of fatty acids called omega-3 fatty acids. EPA and DHA are found primarily in fish while ALA is highly concentrated in certain plant oils such as flaxseed oil and to a lesser extent, canola, soy, perilla, and walnut oils. ALA is also found in wild plants such as purslane. Once ingested, the body converts ALA to EPA and DHA, the two types of omega-3 fatty acids more readily used by the body.

It is important to maintain an appropriate balance of omega-3 and omega-6 in the diet as these two substances work together to promote health. These essential fats are both examples of polyunsaturated fatty acids, or PUFAs. Omega-3 fatty acids help reduce inflammation and most omega-6 fatty acids tend to promote inflammation. An inappropriate balance of these essential fatty acids contributes to the development of disease while a proper balance helps maintain and even improve health. A healthy diet should consist of roughly two to four times more omega-6 fatty acids than omega-3 fatty acids. The typical American diet tends to contain 11 to 30 times more omega-6 fatty acids than omega-3 fatty acids and many researchers believe this imbalance is a significant factor in the rising rate of inflammatory disorders in the United States.

Omega-3 fatty acids have been shown to reduce inflammation and help prevent certain chronic diseases such as heart disease and arthritis. These essential fatty acids are highly concentrated in the brain and appear to be particularly important for cognitive and behavioral function as well as normal growth and development.

 

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Copyright 2005-2006 Bioidentical Medical Dictionary

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