<prompt> Wernickes encephalopathy is due to deficiency of -Folic acidThiamineAscorbic acidPyridoxine  <response>: Ans. is b i.e., Thiamine Wernikes encephalopathyo This is caused by thiamine deficiency.o There are acute degenerative changes in thalamus, hypothalamus and mammillary bodies,o Signs are: confusion, ocular paresis and nystagmus, staggering gait and peripheral neuropathy. 