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Randomized Controlled Trial
. 2016;67(2):203-6.
doi: 10.3109/09637486.2016.1144719. Epub 2016 Feb 17.

A Randomized, Double Blind, Placebo Controlled Study of Spirulina Supplementation on Indices of Mental and Physical Fatigue in Men

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Randomized Controlled Trial

A Randomized, Double Blind, Placebo Controlled Study of Spirulina Supplementation on Indices of Mental and Physical Fatigue in Men

Morgan Johnson et al. Int J Food Sci Nutr. .

Abstract

Spirulina may increase people's ability to resist mental and physical fatigue. This study tested that hypothesis in a randomized, double blinded, placebo controlled study in men. After 1 week, a 3 g/day dose of spirulina produced a small, but statistically significant increase in exercise output (Kcals consumed in 30 min exercise on a cross trainer machine). A mathematical based mental fatigue test showed improved performance 4 h after the first time of supplementation as well as 8 weeks later. Similarly, a subjective survey for a sense of physical and mental fatigue showed improvement within 4 h of the first supplementation as well as 8 weeks later. These results show that spirulina intake can affect fatigue in men.

Keywords: Exercise; Uchida–Kraepelin test; mental stress; microalgae.

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