Spirulina may be helpful for sleep

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Goodfellow Gems

Spirulina may be helpful for sleep 

An RCT in patients with ulcerative colitis1 randomised patients to two 500 mg tablets per day of spirulina (Arthrospira platensis) or placebo for 8 weeks.

There were 40 patients in each group and significant benefits were found in reduced sleep disturbance and improved stress status and quality of life.

There was no benefit in anxiety, depression, fatigue scores or blood pressure.


  1. The effects of spirulina (Arthrospira platensis) supplementation on anthropometric indices, blood pressure, sleep quality, mental health, fatigue status and quality of life in patients with ulcerative colitis: A randomised, double-blinded, placebo-controlled trial. Int J Clin Pract. (2021)  View here

Gems are chosen by the Goodfellow director Dr. Bruce Arroll to be either practice changing or practice maintaining. The information is educational and not clinical advice.

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