Fish Oil
Fish Oil
Snapshot
Fish oil is a rich source of long‑chain omega‑3 fatty acids—EPA and DHA—that support cardiovascular health, cognitive function, joint comfort, and anti‑inflammatory balance.
What is Fish Oil?
Fish oil is extracted from the tissues of oily fish such as salmon, mackerel, sardines, and anchovies. It provides concentrated levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), essential fatty acids that the body cannot efficiently produce on its own.
Where It Comes From
High‑purity fish oil supplements are made from cold‑water, fatty fish harvested sustainably. The oil is extracted, purified to remove contaminants (like mercury and PCBs), and often molecularly distilled to concentrate EPA and DHA.
Key Nutrients & Compounds
Fish oil supplies EPA and DHA in triglyceride or ethyl ester forms. It also contains minor amounts of other omega‑3s (DPA) and lipid‑soluble vitamins A and D, depending on processing and oil source.
Health Benefits
EPA and DHA in fish oil promote heart health by lowering triglycerides, reducing blood pressure, and improving endothelial function. They support brain health, memory, and mood regulation, and alleviate joint stiffness through anti‑inflammatory pathways. Fish oil also benefits eye health and may reduce risk of age‑related macular degeneration.
Recommended Dosage
General health recommendations are 250–500 mg combined EPA + DHA daily. Higher therapeutic doses—1,000–4,000 mg per day—are used for triglyceride management or inflammatory conditions under medical guidance.
How to Use It
Fish oil is available in softgels, liquids, and emulsions. Take with meals containing fat to enhance absorption. Enteric‑coated capsules can reduce fishy aftertaste and reflux.
Who Should Use It?
Ideal for individuals with cardiovascular risk factors, cognitive concerns, joint discomfort, or low fish intake. Also beneficial during pregnancy and lactation for fetal neurodevelopment.
Possible Interactions or Cautions
High doses can increase bleeding risk, especially with anticoagulants. Some may experience gastrointestinal upset or fishy burps. Choose third‑party tested products to ensure purity and potency.
Final Thoughts
Fish oil remains a cornerstone supplement for comprehensive omega‑3 support. Its benefits span heart, brain, joint, and eye health, making it a foundational component of balanced supplementation.
Scientific Studies
Kris‑Etherton, P. M., et al. (2002). Fish consumption, fish oil, omega‑3 fatty acids, and cardiovascular disease. Circulation, 106(21), 2747–2757. https://doi.org/10.1161/01.CIR.0000038493.65177.94
Gómez‑Pinilla, F. (2008). Brain foods: the effects of nutrients on brain function. Nature Reviews Neuroscience, 9(7), 568–578. https://doi.org/10.1038/nrn2421
Calder, P. C. (2013). Omega‑3 polyunsaturated fatty acids and inflammatory processes: nutrition or pharmacology? British Journal of Clinical Pharmacology, 75(3), 645–662. https://doi.org/10.1111/j.1365-2125.2012.04441.x