Pregnancy has been defined as essentially a problem in nutrition at a time when the dominant metabolic forces are such as favor growth. According to Slemons,1 the question as to the substances required for fetal nutrition may be answered in two ways. On the one hand we may infer the needs of the fetus from those of the new-born infant, which is sustained by its mother's milk, or, on the other hand, we may resort to the analysis of its body, on the fair assumption that the substances found in the fetus represent its requirements for growth. From information of this kind we conclude that there is no great difference between the fetus and the adult so far as the quality of the food they require is concerned: in their life processes they use the same organic and inorganic substances, which are always available in the circulating blood of
NUTRITION AND PREGNANCY. JAMA. 1932;98(13):1088–1089. doi:10.1001/jama.1932.02730390042013
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