Janet M. Peerson

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lipid-based nutrient supplements provided to women during pregnancy and 6 mo postpartum and to their infants from 6 mo of age increase the mean attained length of 18-mo-old children in semi-urban Ghana: a randomized controlled trial ABSTRACT Background: Childhood stunting usually begins in utero and continues after birth; therefore, its reduction must(More)
The high prevalence of vitamin B-12 deficiency in many regions of the world is becoming recognized as a widespread public health problem, but it is not known to what extent this deficiency results from a low intake of the vitamin or from its malabsorption from food. In rural Kenya, where a previous study identified a high prevalence of inadequate vitamin(More)
BACKGROUND It is not known whether daily consumption of vitamin A-containing foods is efficacious for treating nightblindness. OBJECTIVE We assessed the effect of supplementation with vitamin A from food or synthetic sources on dark adaptation and plasma retinol concentrations in nightblind pregnant Nepali women. DESIGN Nightblind pregnant women were(More)
The observed variances in monthly weight and length gains of 96 Peruvian infants were compared with predicted variances obtained by applying the reference curve-fitting methods to the same Peruvian data. Predicted variance estimates were significantly less (P less than 0.0001) than the observed variances from 2 to 12 mo of age. The extent of underestimation(More)
Background: Human milk is the subject of many studies, but procedures for representative sample collection have not been established. Our improved methods for milk micronutrient analysis now enable systematic study of factors that affect its concentrations.Objective: We evaluated the effects of sample collection protocols, variations in circadian rhythms,(More)
BACKGROUND Few interventions directly compare equivalent calcium and vitamin D from dairy vs. supplements on the same bone outcomes. The radioisotope calcium-41 ((41)Ca) holds promise as a tracer method to directly measure changes in bone resorption with differing dietary interventions. OBJECTIVE Using (41)Ca tracer methodology, determine if 4(More)
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