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cognitive function

  • Phosphatidylserine (PS) is quite literally a “brain nutrient.” As a matter of fact, this phospholipid is an integral component in the structure of the brain and spinal cord, and is active at cell membranes (including synaptic membrane zones). A significant amount of published clinical research has demonstrated that PS supplementation supports various cognitive parameters in adults and in children.1

    Age-related memory impairment
    Kato-Kataoka et al2 conducted a double-blind, randomized controlled study to investigate the effects of PS on the cognitive functions of elderly Japanese subjects with memory complaints. Seventy-eight elderly people with mild cognitive impairment (50–69 years old) were randomly allocated to take PS (100 mg, 300 mg/day) or placebo for six months. In the subjects with relatively low score at baseline, the memory scores in PS treated groups were significantly increased against the baseline, while those of the placebo group remained unchanged. And the memory improvements in PS treated groups were mostly attributed to the increase in delayed verbal recall, a memory ability attenuated in the earliest stage of dementia.