Eric Noreen, et al., Effects of supplemental fish oil on resting metabolic rate, body composition, and salivary cortisol in health adults.J Int Soc Sports Nutr. 2010;7:31.
Objective: To determine the effects of supplemental fish oil (FO) on resting metabolic rate (RMR), body composition, and cortisol production in healthy adults.
Conclusion: Six weeks of supplementation with FO significantly increased lean mass and decreased fat mass. These changes were significantly correlated with a reduction in salivary cortisol following FO treatment.