Lecithin treatment of cognitively impaired Parkinson's patients

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Abstract
To test the effects of lecithin on cognitive deficits associated with Parkinson's disease, sixteen elderly and mentally‐impaired outpatients with Parkinson's disease participated in a 9‐week double‐blind placebo‐controlled study. Each patient took a daily dose of approximately 32 g of a commercial lecithin preparation containing 25% phosphatidylcholine, or an equivalent amount of powdered skim milk placebo. Marked clinical improvement was not observed, but some indications of a positive treatment effect were obtained on memory, cognition, and motility tests.