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Nutrient Intake by Breast-fed Infants During the First Five Days After Birth
Clare E. Casey, PhD;
Marianne R. Neifert, MD;
Joy M. Seacat, MS;
Margaret C. Neville, PhD
Am J Dis Child. 1986;140(9):933-936.
Abstract
• The intakes of milk and specific nutrients during the first 120 hours after birth were measured in 11 full-term, breast-fed infants. Infants were test weighed at all feeds using an electronic balance, and milk samples were obtained from both breasts one to three times daily. Milk was analyzed for levels of fat, protein, lactose, calcium, sodium, and potassium; energy content was calculated using the Atwater factors. The average (±SD) intake of milk in the first 24 hours after birth was 13 ±16 g/kg (range, 3 to 32 g/kg), increasing to 98±47 g/kg (50 to 163 g/kg) and 155 ± 29 g/kg (110 to 196 g/kg) on days 3 and 5, respectively. Mean daily intakes of energy, lactose, calcium, and potassium were less than 12% of the mean day 5 intake on day 1 and less than 25% of the day 5 intake on day 2. In the first few days after birth, the nutrient intake of the solely breast-fed infant is highly variable and is frequently low.
(AJDC 1986;140:933-936)
Author Affiliations
From the Departments of Pediatrics (Drs Casey and Neifert) and Physiology (Dr Neville and Ms Seacat), University of Colorado Health Sciences Center, Denver. Dr Casey is now with the Department of Medicine, University of Aberdeen (Scotland) Medical School, and Dr Neifert and Ms Seacat are now with the Lactation Program, St Luke's Hospital, Denver
Footnotes
Accepted for publication June 9, 1986.
Reprints not available.
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