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Fish oil is often discussed for its brain and mood benefits, but research shows it may also improve resting metabolic rate (RMR) and body …
what it claims
The idea that omega-3s influence metabolism is based on plausible biological mechanisms, such as improved insulin sensitivity and mitochondrial function.
noli's read
The idea that omega-3s influence metabolism is based on plausible biological mechanisms, such as improved insulin sensitivity and mitochondrial function. The study cited by Andy Galpin (Journal of the International Society of Sports Nutrition, 2015, randomized clinical trial) does observe an increase in resting metabolism in supplemented older women. However, it is important to note that this evidence comes from a small sample size, which limits generalization to the entire population. Other research shows varied results: while effects on body composition are often positive when paired with exercise, they remain modest and do not constitute a miracle solution for fat loss. In summary, omega-3s are an excellent support for overall metabolic health, but their direct impact on calorie burning remains a complementary aid rather than a major lever.
the sources
Claimed by Andy Galpin. Noli grades the claim, never the person.
Decoded by Noli · July 18, 2026 · the original post
What’s uncertain
Strong for a specific medical use; modest for everyday wellness.
Other advice in the Register that leans on the same research.
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