The effects of L-theanine (Suntheanine) on objective sleep quality in boys with attention-deficit/hyperactivity disorder (ADHD): a randomized, double-blind, placebo-controlled clinical trial
Lyon MR, Kapoor MP, Juneja LR
Published in Alternative Medicine Review
Methodology
Randomized, double-blind, placebo-controlled trial of L-theanine 400 mg/day for six weeks with actigraphy-measured sleep in boys aged 8-12 with ADHD.
Key Findings
L-theanine improved sleep percentage and sleep efficiency and reduced nocturnal activity compared with placebo, without significant change in time to sleep onset.
Conclusions
L-theanine safely improves objective sleep quality in boys with ADHD.
Limitations
Boys only, small single-site sample, manufacturer-sponsored, journal since discontinued.
Supplements Studied
L-theanine improved sleep percentage and sleep efficiency and reduced nocturnal activity compared with placebo.
Outcomes Measured
L-theanine improved objective sleep efficiency measured by actigraphy.
Related Health Concerns
Study Details
Access Study
Disclosures
Funding
Ingredient manufacturer (Taiyo Kagaku)
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