Cerebral Folate Deficiency: Understanding Its Role in Neuropsychiatric Disorders Cerebral folate deficiency (CFD) is an often-overlooked condition characterised by low levels of folate in the cerebrospinal fluid, despite normal levels in the blood. Increasing evidence suggests that CFD may play an important role in a range of neurological and psychiatric symptoms, including anxiety, depression, cognitive decline, memory difficulties and obsessive-compulsive

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