<prompt> Pellegra deficiency of ?NiacinThiamineRiboflavinFolate  <response>: Ans. is a i.e., Niacin Beri-beri Deficiency of thiamine Vit B1 Can be dry neural involvement Wet cardiac involvent Acute Pellagra Niacin Vit B3 def. Dermatitis Diarrhea Dementia 