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Essential Fatty Acids (Omega-3 and Omega-6 Fatty Acids)

Essential fatty acid (EFA), also known as polyunsaturated fat, is not made by the body, so it is essential to get EFA from food. EFA supports and regulates important body functions in the cardiovascular, reproductive, immune, and nervous systems.

The two types of EFA are:

  • Omega-3 fatty acids, which are found in foods from plants like soybean oil, canola oil, walnuts, and flaxseed.
  • Omega-6 fatty acids, which are found mostly in liquid vegetable oils like soybean oil, corn oil, and safflower oil.

Another type of omega-3 fatty acid is found in fatty fish and shellfish as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Salmon, anchovies, herring, sardines, Pacific oysters, trout, Atlantic mackerel, and Pacific mackerel are high in EPA and DHA and lower in mercury.


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This search will provide you with WellSpan Medical Group and Northern Lancaster County (Ephrata) Medical Group primary care physicians and specialists. If we don’t have a WellSpan Medical Group physician to meet your criteria, the search will expand to include community physicians who partner with WellSpan Medical Group physicians through the WellSpan Provider Network or provide care to patients on the Medical Staffs of WellSpan’s Hospitals.

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