Why fish oil doesn't work as well for obese people
Modification of subcutaneous white adipose tissue inflammation by omega-3 fatty acids is limited in human obesity-a double blind, randomised clinical trial
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Obese people absorbed just as much EPA and DHA into their fat tissue as lean people—but still got zero anti-inflammatory benefit.
Everyone assumes if the nutrient gets in, it should work. This study proves biology can block the effect entirely—even with perfect uptake.
Practical Takeaways
If you're obese, don't rely on fish oil to reduce inflammation—focus on weight loss, exercise, and anti-inflammatory foods (like leafy greens and berries) instead.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Obese people absorbed just as much EPA and DHA into their fat tissue as lean people—but still got zero anti-inflammatory benefit.
Everyone assumes if the nutrient gets in, it should work. This study proves biology can block the effect entirely—even with perfect uptake.
Practical Takeaways
If you're obese, don't rely on fish oil to reduce inflammation—focus on weight loss, exercise, and anti-inflammatory foods (like leafy greens and berries) instead.
Publication
Journal
EBioMedicine
Year
2022
Authors
H. Fisk, C. Childs, E. Miles, R. Ayres, P. Noakes, C. Paras-Chavez, O. Kuda, J. Kopecký, E. Antoun, K. Lillycrop, P. Calder
Related Content
Claims (5)
Omega-3s, like those in fish oil, help your body make natural chemicals that shut down inflammation when it’s no longer needed—kind of like hitting the 'off' switch after a fire alarm goes off.
Even if an obese person doesn’t have diabetes or high blood pressure, their fat tissue is still stuck in 'alarm mode'—it’s not calming down like it should, which might make them more likely to get sick.
When people are obese, their fat tissue doesn’t make enough of a special protein that helps turn omega-3s from fish oil into anti-inflammatory messengers—so the omega-3s don’t work as well to reduce inflammation.
Taking a daily omega-3 supplement for 3 months can calm down the immune system in your fat tissue, even if you're at a normal weight—like turning down the volume on inflammation signals that don't need to be so loud.
Taking fish oil supplements daily for 12 weeks helps lean people reduce body fat inflammation and boost a helpful anti-inflammatory compound, but if you're obese, even though your body gets the same amount of fish oil, you don’t get these anti-inflammatory benefits.