Non-fish DHA is available in supplement form, from algae. Which, by the way, is where fish get it from. Farm-raised fish contains little or no DHA. The active compound is trademarked “Neuromins”, but is available in various different brands, with the bottles identifying the contents as “Neuromins DHA” in addition to the brand name (e.g. Vitamin Shoppe).
I have heard of the benefits of taking algae. Lots of algae supplements out there.
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