• H L Delgado, V E Valverde, R Martorell, and R E Klein.
• Early Hum. Dev. 1982 Jul 1; 6 (3): 273-86.

AbstractA cohort of all infants born between January 1, 1969 and February 28, 1977 in four rural villages in Eastern Guatemala which were participating in a longitudinal project of nutrition and mental development was studied. As part of the study, prospective information on anthropometric measurements, morbidity, dietary intake and socioeconomic and cultural characteristics was collected. In addition, two types of food supplements were distributed: calorie and protein-calorie. Attendance at the feeding centers in each village and the amount of supplements consumed by children and pregnant and lactating mothers were recorded daily. We studied the effect of the supplements consumed by the mother during pregnancy and lactation and by the infant on trimestral infant weight and length changes during the first year of life. The data indicate that infant calorie supplementation before three months of age is significantly and negatively associated with infant growth; after three months of age, supplemental calories consumed by the infant are significantly and positively associated with infant weight and length gains. In addition, a small positive association was found between maternal caloric supplementation during lactation and infant growth during the first two trimesters of life, after controlling for potentially confounding factors for which data are available in this study.

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