Krill Oil Raises Blood Omega-3 Levels More Than Fish Oil
This 12-week clinical trial compared krill oil and fish oil supplements in 72 healthy adults, giving each group the same daily dose of omega-3s (1.1 grams). Researchers tracked blood levels of EPA and DHA over time using precise lab measurements.
People taking krill oil saw about 1.5 times greater increases in both EPA and DHA compared to those taking fish oil, even though the dose was identical. The study also found that women experienced a larger EPA increase than men, and that people carrying the APOE4 gene variant showed strong increases in EPA and DHA after either supplement, though not significantly different from non-carriers.
The researchers suggest the phospholipid form of omega-3s in krill oil, versus the triglyceride form in fish oil, may explain why blood levels rose more with krill oil.
What this means for you
If you’re aiming to raise your blood omega-3 levels, this study suggests that krill oil may produce a bigger increase than the same dose of fish oil, potentially making it possible to achieve similar omega-3 status with a lower amount.
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The American journal of clinical nutrition · 2026-07-01 · DOI: 10.1016/j.ajcnut.2026.101346
Read the original source ↗This summary is for educational purposes only and is not medical advice. Always talk to your healthcare provider before making changes to your supplement routine.