Taking omega-3 supplements might help muscle health more in people who are losing muscle due to illness or aging than in healthy people, but it’s not certain how much better it is.

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Pro

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Evidence from Studies

Supporting (1)

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Community contributions welcome

2

Skeletal muscle protein turnover and mitochondrial responses to omega-3 fatty acid supplementation: an update

Narrative Review

Human

2026 Mar 1

Omega-3 supplements might help sick or elderly people with muscle loss more than healthy people, because they help reduce body stress and improve muscle cell function in those who are already weak.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Skeletal muscle protein turnover and mitochondrial responses to omega-3 fatty acid supplementation: an update

Score: 2

DOI: 10.1097/mco.0000000000001196

Similar Assertions

Taking omega-3 supplements may help you build more muscle and get stronger, no matter if you exercise or not.

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Taking omega-3 supplements might help your muscles grow better when you eat protein or work out, especially if you're sick or have a medical condition—but it doesn't always work for healthy people.

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Taking omega-3 supplements like EPA and DHA might help these fats get into your muscle and energy-producing parts of cells, which could help your muscles grow and work better—but studies in healthy people don’t always agree on whether it actually boosts muscle building.

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Taking omega-3 fatty acids might help reduce harmful stress in muscle cells, especially as we age or if we're sick, and this could help muscles stay stronger and work better — but this has only been seen in animal or lab studies so far.

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