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  • Title: Maternal nutrition, infant health, and subsequent fertility.
    Author: Osteria TS.
    Journal: Philipp J Nutr; 1982; 35(3):106-11. PubMed ID: 12266149.
    Abstract:
    This paper focuses on the influence of maternal nutrition on infant survival and growth and on subsequent fertility. During pregnancy, modifications in the maternal hormonal system help maintain availability of nutrients to the fetus relatively independently of maternal nutrition. When maternal dietary deficiencies reach critical levels, the effectiveness of these mechanisms in maintaining fetal nutrition decreases. Studies have confirmed the correlation of severe maternal malnutrition and lowered birth weight, neurological disorders, impaired physical growth, mental retardation, and poor school performance. Marginal nutritional status affects milk production capacity. The basis of most recommendations for lactating mothers is that the average mother produces 850 ml of milk each day. Depending on the anticipatory reserves of fat from pregnancy still available and the level of physical activity of the mother, from 2750 to 3300 Kcal/day may be needed. When the mother's energy intake is good, milk fat resembles that of her dietary fat, but when there is a shortage of food energy, the milk fatty acid pattern resembles the mother's subcutaneous fat stores. The lactose content and overall protein content of milk seem stable despite changes in the maternal diet, but the vitamin content, particularly water soluble vitamins, is very sensitive to dietary intake. Birth weight has consistently been found to be associated with infant mortality through 2 main mechanisms: maternal malnutrition may lead to a smaller placental size and decreased nutrient supply to the fetus, resulting in developmental retardation during intrauterine life, or maternal malnutrition may result in suboptimal lactation performance which will contribute to malnutrition and growth retardation of the child. Maternal nutritional status has an independent effect on the duration of postpartum amenorrhea. Improving maternal diet without concurrently introducing contraception may shorten the birth interval and consequently elevate the birthrate.
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