Heap, L., Peters, T., & Wessely, S. (1999). Vitamin B status in patients with chronic fatigue syndrome.
Journal of the Royal Society of Medicine 92, 183-185.

This study provides preliminary data suggesting reduced functional Vitamin B status, most particularly pyriodxine, in CFS. Study concludes that this needs to confirmed elsewhere, but there may be justification for a proper clinical trial of pyridoxine in patients with CFS.

Evidence of Corisol