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Healthy Eating

Fish Oil Increases Lean Mass and Decreases Fat

Athletes are becoming more aware of the empirically based data recommending fish oil supplementation for performance, recovery, and health.

Mindith Rahmat

Written by Mindith Rahmat Last updated on September 15, 2011

Athletes are becoming more aware of the empirically based data recommending fish oil supplementation for performance, recovery, and health. New research in the Journal of the International Society of Sports Nutrition, examined the effects of supplemental fish oil ingestion on resting metabolic rate, body composition, and on morning salivary cortisol concentrations.

Researchers assessed 44 subjects, randomly assigned in a double blind manner into 2 separate groups. The test group ingested 4 g/d of Safflower Oil and the control group ingested of 4 g/d of fish oil supplying 1,600 mg/d eicosapentaenoic acid (EPA) and 800 mg/d docosahexaenoic acid (DHA). The subjects supplemented their daily diet with 2 capsules at breakfast and 2 capsules at dinner for 6 weeks.

Researchers found that after only 6 weeks of supplementation with fish oil subjects significantly increased their lean mass measurements and decreased body fat mass measurements. There was also a noted significant reduction in salivary cortisol following the fish oil protocol. Researchers suggested that this reduction in salivary cortisol, found in the saliva of subjects following the fish oil protocol was significantly correlated with decreased fat mass.

Researchers assert that it is still necessary to conduct more research with a larger demographic to determine the short term and long term effects of fish oil supplementation on the body.

Mindith Rahmat

About Mindith Rahmat

Mindith is a born mover. She has spent her life exploring various athletic disciplines, starting with ballet and modern dance from an early age. She went on to become a E-RYT 500 certified yoga therapist and teacher and discovered CrossFit after the birth of her daughter.

Mindith coached CrossFit at a number of boxes near her home in Southern California, which lead to her involvement in Russian kettlebells and Olympic weightlifting. She has coached a wide variety of populations and cares deeply for women’s health, specializing in pregnancy and postpartum fitness. She is currently studying the principles of Natural Movement and Kettlebell Sport, and is working to complete an additional teacher training in the Taoist art of Yin Yoga with Master Paulie Zink.

Mindith founded Breaking Muscle in 2011. Over 5 million people a month have visited the site, hundreds of thousands of them follow Breaking Muscle on social media, nearly 2,000 coaches have written or appeared on its pages, and there are thousands of free, fully-formed training plans freely available. Breaking Muscle has won numerous awards in the industry and is recognized for pioneering new approaches to fitness and coaching techniques. In 2021, Breaking Muscle was acquired by Barbend. Mindith continues to devote time to her kids, pursue her doctorate in psychology, do research, and teach.

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