NutriVouch
Confidence level
Emerging evidence
44 studies

Algal Oil

Last reviewed: 4/3/2026

Share:
Absorption
Take with a fat-containing meal. The DHA in algal oil has been shown to be bioequivalent to fish oil DHA. Store refrigerated to prevent oxidation.
Daily Dose
Common dose: 200-1000 mg DHA per day
RDA: No specific RDA; general omega-3: 250-500 mg EPA+DHA/day
Upper limit: FDA recommends no more than 3 g/day DHA+EPA combined
Best form: Microalgae-derived DHA oil in softgel capsules
Timing: With a meal containing fat
Suitable for vegans. Some DHA is retroconverted to EPA. Safe during pregnancy (300 mg DHA/day commonly recommended).
Food Sources
  • DHA-fortified foods (milk, juice, eggs)32-50 mg DHA per serving
  • Seaweed/noriTrace amounts of EPA/DHA

Not medical advice