FITS/KNHS Overview

The Feeding Infants and Toddlers Study (FITS) and Kids Nutrition and Health Study (KNHS) are large-scale cross-sectional surveys designed to explore eating patterns, nutrient intakes, and food sources of nutrients in infants and children.

FITS and KNHS use data from national surveys when available, but when data are not available for age groups of interest, we collect data using similar methods. So far, we have applied a common analysis approach in Australia, China, Mexico, the Philippines, Russia, and the United States. Although dietary data collection methods were similar, other aspects of the survey methodology differed considerably.

Food composition tables varied, limiting accurate intake estimates to only a few nutrients in some countries. Different countries used different age classifications and different food grouping schemes. Not all surveys recorded details about the meals or times when foods were consumed.

As much as possible, the FITS and KNHS have standardized age categories and food groupings so comparisons can be made, and we have imputed missing values to complete data sets for nutrients of interest. We have also supported primary data collection to fill gaps. This presentation provides an overview of the individual studies and country data that comprise the current FITS and KNHS.