<prompt> What isare components of Nutrition surveillance?Policy makerNational surveyAFP surveillaceDOTS  <response>: Nutritional surveillance Keeping a watch over nutrition, in order to make decisions that will lead to improvement in nutrition of population Main strategy: Detection of malnutrition Nutritional survey Approach : Diagnostic-interventional Sample: Representative, 50-100 size group Objectives To aid health and development To provide input for program management and evaluation to policy maker To give timely warning and intervention to prevent sho-term food crises Ref: Park 25th edition Pgno : 688 