<prompt> How is under-nutrition defined?Weight for age -2 SDWeight for height -2 SDWeight for age -3 SDWeight for height - 3 SD  <response>: Ans. b. Weight for height -2 SD Ref: Ghai 8e p96Under nutrition is defined in terms of Height for Height, i. e. -2 SD. Height for Height -3 SD is severe under nutrition.Indicators of MalnutritionIndicatorParameterInterpretationStuntingLow height for ageChronic malnutritionQWastingLow weight for heightAcute malnutritionQUnder weightLow weight for ageBoth acute chrome malnutritionQ WHO Classification of Malnutrition Moderate malnutritionSevere malnutrition typeSymmetrical edemaNoYes edematous malnutritionWeight-for-heightSD score from -2 to -3SD score -3 severe wastingHeight-for-ageSD score from -2 to -3SD score -3 severe stunting 