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What we actually know about the relation of malnutrition to intellect and learning, and what is the significance of this knowledge for psychology and education? What are the implications of this evidence for improved functioning? This paper is addressed to these questions and indicates that nutritional factors at a number of different levels contribute to depressed intellectual level and learning failure. These factors are discussed in a social context.
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Herbert G. Birch (1972) studied this question.
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