<prompt> Wernickes encephalopathy occurs due to deficiency ofVitamin B1Vitamin B2Vitamin B6Vitamin B12  <response>: A Vitamin B1 Dry Beriberi involves both the peripheral and the central nervous systems. Peripheral nerve involvement is typically asymmetric motor sensory neuropathy with pain, paresthesias loss of reflexes. The legs are affected more than the arms. Central nervous system involvement results in Wernicke-Korsakoff syndrome. Wernickes encephalopathy consists of nystagmus progressing to ophthalmoplegia, truncal ataxia confusion Koraskoffs syndrome includes amnesia, confabulation, and impaired learning. 