OmegaCheck

EPA, DPA, and DHA are long-chain omega-3 fatty acids primarily found in marine sources such as fish oil, krill oil, and algae. EPA (Eicosapentaenoic Acid) is known for its powerful anti-inflammatory properties and its role in supporting heart health, mood regulation, and immune function. DHA (Docosahexaenoic Acid) is essential for brain development and cognitive function, especially during pregnancy and early childhood, and also contributes to eye and nerve health. DPA (Docosapentaenoic Acid), though less well-known, is structurally similar to EPA and DHA and may act as a reserve, converting into either when needed, while also offering unique cardiovascular benefits. Together, these three fatty acids form the most bioactive and beneficial components of omega-3 intake, playing critical roles in maintaining overall health and preventing chronic disease.

Ratio of Arachidonic Acid to EPA

Omega-6 to Omega-3 Ratio compares the total percentage of omega-6 fatty acids to total omega-3 fatty acids. Historically, human diets had ratios closer to 1:1 or 2:1, while modern Western diets often exceed 10:1 or 15:1, potentially promoting inflammation. While the ideal ratio is debated and individual fatty acids (esp. AA/EPA) may be more informative, aiming for a lower ratio (e.g., <4:1 or <5:1) by increasing omega-3 intake and moderating omega-6 intake is generally considered beneficial for reducing chronic inflammation/

Total Omega-3 Fatty Acids measures the sum percentage of all omega-3 fats, including ALA (alpha-linolenic acid), EPA, DPA, and DHA. These fats are generally anti-inflammatory and crucial for cardiovascular and brain health. Higher levels are desirable, primarily reflected in the Omega-3 Index (EPA+DHA > 8%).

Eicosapentaenoic Acid (EPA, 20:5n-3) is a long-chain omega-3 fatty acid known for its potent anti-inflammatory effects and benefits for cardiovascular health (e.g., lowering triglycerides, reducing blood clotting). It competes with arachidonic acid (AA) for enzymes, shifting eicosanoid production towards less inflammatory types. Obtained from fatty fish or synthesized inefficiently from ALA. Assessed as part of Omega-3 Index.

Docosapentaenoic Acid (DPA, 22:5n-3) is an omega-3 fatty acid that serves as an intermediate between EPA and DHA. It also has its own potential anti-inflammatory and cardiovascular benefits. Levels are measured as a percentage of total fatty acids.

Docosahexaenoic Acid (DHA, 22:6n-3) is a crucial long-chain omega-3 fatty acid vital for brain structure and function, eye health (retina), and cardiovascular health. It has anti-inflammatory properties. DHA is obtained from fatty fish, algae, or synthesized inefficiently from ALA. Maintaining adequate DHA levels (contributes significantly to the Omega-3 Index) is important throughout life, especially during pregnancy and early development.

Total Omega-6 Fatty Acids measures the sum percentage of omega-6 polyunsaturated fats, primarily linoleic acid (LA) and arachidonic acid (AA). While essential, excessive intake of omega-6 relative to omega-3 is thought to promote inflammation. Maintaining a balanced Omega-6/Omega-3 ratio (ideally < 4:1) is considered important for health.

Arachidonic Acid (AA, 20:4n-6) is an omega-6 fatty acid derived from linoleic acid or obtained directly from animal products. It is a precursor to various signaling molecules, including pro-inflammatory eicosanoids (prostaglandins, leukotrienes). While essential, excessive levels relative to EPA can contribute to a pro-inflammatory state. Measured as a percentage of total fatty acids.

Linoleic Acid (LA, 18:2n-6) is an essential omega-6 fatty acid found abundantly in many vegetable oils (soy, corn, safflower). It is the precursor to arachidonic acid (AA). While necessary, modern diets are often very high in LA, which can contribute to an unfavorable omega-6/omega-3 balance and potentially promote inflammation if intake is excessive