Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Algal oil is primarily valued for its high content of omega-3 fatty acids, particularly docosahexaenoic acid (DHA) and, sometimes, eicosapentaenoic acid (EPA). Scientific studies have shown that omega-3 fatty acids can have a beneficial effect on cardiovascular health, including improving blood circulation. Omega-3s are known to reduce triglyceride levels, decrease blood viscosity, lower blood pressure, and improve endothelial function, all of which can contribute to better circulation. Most of the clinical research supporting these effects has focused on fish oil, but algal oil offers a plant-based, sustainable alternative source of DHA and, in some formulations, EPA. Several randomized controlled trials and meta-analyses have demonstrated that supplementation with omega-3 fatty acids from algal sources can raise blood levels of DHA and EPA similarly to fish oil. While direct studies on algal oil and "poor circulation" are limited, extrapolation from studies on cardiovascular and vascular health suggests potential benefits. The American Heart Association recognizes the role of omega-3s in cardiovascular health, and algal oil is considered an effective alternative, especially for vegetarians and vegans. That said, the evidence is not as robust or direct for algal oil specifically in the treatment of poor circulation as it is for fish oil or omega-3s in general, which is why the evidence rating is 3 out of 5. More targeted research is needed, but the current scientific understanding supports its use based on its omega-3 content.

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