Algal oil (vegan DHA/EPA)
Tier 2 — promising · Omega-3 · Vegan · DHA
DHA (and increasingly EPA) produced by microalgae (Schizochytrium, Crypthecodinium) — the original producers of marine omega-3s that fish accumulate through the food chain. Equivalent bioavailability to fish oil per gram EPA/DHA in head-to-head trials. The definitive omega-3 source for vegetarians/vegans and the cleanest option for heavy-metal avoidance. Cost per gram DHA is higher than fish oil but falling. The only strictly vegan way to reliably achieve DHA sufficiency.
Dose: 500–2000 mg combined EPA+DHA daily (check product potency — varies widely)