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In a study of Washington state school children, regression models showed full participants in the school lunch program to have significantly higher intakes for five of ten nutrients than non‐ or partial participants. Nonparticipants had significantly higher intakes of iron. Nutrient intakes of food stamp recipients were not significantly higher than other school children. Liquid assets and total assets each increased intakes of two nutrients, while the value of food consumed had no significant effect on any of the nutrients. Biochemical data showed few problems of malnutrition to exist among this sample of school children.
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Price et al. (1978) studied this question.
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