Safety limit

  • Planning
  • Fortification
  • Supplementation


The greatest amount of a micronutrient that can be safely added to specific foods. It considers the Tolerable Upper Intake Level (UL) for the nutrient and the 95th percentile of consumption of a food, and makes allowances for the fact that the nutrient is also consumed in unfortified foods, and may be lost during storage and distribution, and/or cooking.


WHO and FAO (2006). Guidelines on food fortification with micronutrients, World Health Organization.