Zinc-fortified foods do not improve intake of total dietary zinc for Ontario preschoolers.

Objective: To examine if zinc food fortification makes a significant contribution to dietary zinc intake and to describe zinc-fortified food usage, amongst Canadian preschoolers.

Methods: Cross-sectional data were used from the NutriSTEP validation project for which preschoolers (3-5 years) from across Ontario were recruited using convenience sampling. Three-day food records were used to estimate mean daily zinc intake and children were stratified by age group for analysis.