The purpose of this study was to determine the food habits and nutrient intake of 9,- 10- and 11- year-old children of three north central states-Iowa, Kansas and Ohio. Physical measurements were taken and hemoglobin concentrations determined for all of the children. Determinations of serum concentrations of ascorbic acid, carotenoids. vitamin A and alkaline phosphatase were made on portions of the total sample. Certain information was obtained regarding the homes and families.

This report deals with the nutritive value of the diets of 1,700 children. The diets were obtained from 3-day dietary records in 1948-51. Information about food habits and nutrient intake is essential in determining the need for nutritional improvement and in planning programs to bring about better health through improved nutrition.