<prompt> Thiamine deficiency causesBeriberiNight blindnessScurvyPellagra  <response>: Ans: a Beri BeriRef: Park, 20th ed. Pg. 534, Davidson Principles and Practice of Medicine, 20th ed.Recommended name alternative nameSourcesDeficiencyExcessInvestiga-tionsFAT-SOLUBLEVitamin ALiver, milk, butter, cheese, fish oilsXerophthalmia, almia, night blindness, keratomalacia, follicular hyperkeratosisLiver damage, bone damage, teratogenesisSerum retinolVitamin DMainly manufactured in skin under the influence of sunlightRickets, osteomalaciaHypercal- caemiaPlasma 25OHD or 1,25OH 2 DVitamin EVegetables, seed oilsHaemolytic anaemia, ataxia Plasma vitamin EVitamin KGreen vegetables, dairy productsCoagulation disorder Coagula-tion assay e.g. proth-rombin time - plasma vitamin KWATERSOLUB LE Thiamine Vitamin BlCereals, grains, bean, porkBeri-beri, Wernicke- Korsakoff syndrome RBC trans-ketolase or whole blood vitamin B 1Riboflavin Vitamin B 2MilkGlossitis, stomatitis RBC glutat-hione reductase or whole blood vitamin B 2Niacin Nicotinic acid, vitamin B 3 metabolitesMeat, cerealsPellagra Urinary nicotin- amide,Vitamin B 6 PyridoxineMeat, fish, potatoes, bananasPolyneuropathyPolyneu-ropathyPlasma pyridoxal phosphate or eryth ro-cyte trans-aminase activation coefficient Biotin Dennatitis, alopecia, paraesthesiae Liver, egg yolk, cereals, yeastWhole blood or urine biotinFolateLiverAnaemiaRBC folateVitamin B 12 CobalaminAnimal productsAnaemia, neurological degenerationPlasma B 12Vitamin C Ascorbic acidFresh fruit and vegetablesScurvyPlasma ascorbic acid daily intake Leucocyte ascorbic acid tissue stores 