The Study
Long-Chain Omega-3 Fatty Acid Supplementation and Exercise-Induced Muscle Damage: EPA or DHA?
This study gave different fish oil supplements to groups of guys and saw who felt less sore and got stronger faster after a tough workout. It’s like a fair test where only the pills were different — so we can guess the pills helped. But we don’t know if everyone was fooled into thinking they got the real pill, so we can’t be 100% sure.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Scientists gave young men fish oil pills with either EPA, DHA, both, or nothing, then made them do hard exercise to sore muscles and saw how fast they bounced back.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 554 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The improvements were real but small — enough to notice in a lab, but not likely to make a big difference for most people in daily life or sports.
- 2EPA and DHA both made soreness go down and strength come back faster.
- 3EPA was better at helping jump higher and power faster.
- 4Taking both together didn't help more than either alone.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Medicine & Science in Sports & Exercise
Year
2023
Authors
J. Heileson, Dillon R. Harris, Sara Tomek, P. Ritz, Michelle S Rockwell, Nicholas Barringer, Jeffrey S. Forsse, L. Funderburk
Related Content
Claims (6)
Taking 4 grams daily of EPA or DHA omega-3 supplements for 52 days may help healthy young men with low omega-3 levels recover faster after intense exercise, reducing muscle soreness and maintaining leg strength, with EPA potentially offering better improvements in explosive power than DHA or a placebo.
In healthy young men, taking 4 grams of EPA daily for 52 days may help maintain explosive leg power after intense exercise that causes muscle damage, compared to taking DHA or a placebo.
Taking fish oil supplements containing EPA and DHA may lead to very small or negligible gains in muscle size and strength for most people, and these changes are not large enough to be meaningful in a clinical or practical sense.
Taking 4 grams per day of a combination of EPA and DHA omega-3 fatty acids for 52 days in healthy young men does not clearly improve muscle recovery after exercise better than taking EPA or DHA alone, and might reduce the performance improvements seen with either fatty acid by itself.
Taking 4 grams of DHA daily for 52 days may reduce muscle soreness after intense exercise as much as EPA, but it does not improve muscle strength or power recovery as effectively as EPA.
Taking 4 grams of omega-3 supplements daily for 52 days raises the omega-3 levels in red blood cells of healthy young men, indicating that EPA and DHA are incorporated into tissues, but does not lower markers of systemic inflammation following exercise-induced muscle damage.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.