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Efficacy of Perna canaliculus in children with attention-deficit hyperactivity disorder.

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PCSO-524® is a standardized lipid extract of the New-Zealand green-lipped mussel (Perna canaliculus) known for its anti-inflammatory properties.




In this randomized, double-blinded, placebo-controlled study, PCSO-524® has been given to children and adolescents with attention-deficit hyperactivity disorder (ADHD, n =144). Participants receiving the extracts have consumed three (≤ 45 kg) or four (> 45 kg) capsules per day for 14 weeks. Each capsule (260 mg) provided 50 mg eicosatetraenoic acid, 7.3 EPA, 5.5 mg DHA, 100 mg of natural mono-unsaturated olive oil and 0.225 mg vitamin E.


Results did not report any significant effect of PCSO-524® in comparison to placebo on parental reports of hyperactivity, inattention and impulsivity in children aged 6 to 14 years.

However, repeated measures ANOVA showed significant improvements in hyperactivity (p = 0.04), attention (p = 0.02), learning (p = 0.05) and probability of ADHD (p = 0.04) in children who did not meet criteria for combined hyperactivity and inattention. Therefore, the New-Zealand green-lipped mussel extract PCSO-524® may be beneficial in reducing levels of hyperactivity and inattention in children and adolescents with clinical and subclinical symptoms of ADHD.




Kean JD, Sarris J, Scholey A, Silberstein R, Downey LA, Stough C. Reduced inattention and hyperactivity and improved cognition after marine oil extract (PCSO-524®) supplementation in children and adolescents with clinical and subclinical symptoms of attention-deficit hyperactivity disorder (ADHD): a randomised, double-blind, placebo-controlled trial. Psychopharmacology (Berl). 2016 Dec 5.


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