<prompt> What is are components of Nutrition surveillance?Policy makerDOTSNutritional surveyAFP surveillance  <response>: Nutrition surveillance: Main strategy: Detection of malnutrition nutritional survey Approach: Diagnostic-interventional Sample: Representative, 50 - 100 size group Objectives: 1. To aid health and development 2. To provide input for program management and evaluation to policy makers 3. To give timely warning and intervention to prevent short-term food crises 