Omega-3 Fatty Acids: Benefits and Best Sources
Omega-3 fatty acids are among the most researched nutrients in the world and the evidence for their benefits is substantial. These essential fats play critical roles in brain function, inflammation regulation, and heart health. The three main types are ALA found in plant oils, and EPA and DHA found primarily in marine sources. Your body can convert some ALA to EPA and DHA but the conversion rate is inefficient. Fatty fish like salmon, mackerel, sardines, and anchovies are the richest dietary sources. For those who do not eat fish, algae oil provides a direct plant-based source of EPA and DHA. Walnuts, flaxseeds, chia seeds, and hemp seeds provide ALA. Research supports omega-3 benefits for reducing triglycerides, lowering blood pressure slightly, reducing inflammation, and supporting brain health throughout life. Some studies suggest benefits for depression, ADHD, and age-related cognitive decline. When choosing a supplement, look at the amounts of EPA and DHA specifically rather than just total fish oil.
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