<prompt> Thiamine deficiency - causes -PellagraBeri - BeriKeshans diseaseRickets  <response>: Ans. is b i.e., Beri-Beri Ref:Ghai 7th p.67Beri-berio Deficiency of thiamine Vit Blo Can be dry neural involvemento Wet cardiac involvent o AcutePellagrao Niacin Vit B3 defo Dermatitiso Diarrheao DementiaKeshan diseaseo Cardiomyopathy associated with selenium deficiencyRickets Nutritional Rickets there is deficiency of vitamin D.o Earliest is biochemical change Raised alkaline phosphate.o Serum caP may be either normal or low.o Clinical feature skeletal deformity -o Genu varumo Genu valguso Rickety rosaryo Harrison sulcuso Double malleoluso Greenstick fractureo Bone paintenderness 