Iron Balance and Requirements in Infancy
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چکیده
134 IRON BALANCE AND REQUIREMENTS IN INFANCY H UMAN iron requirements and metabolism of iron during the first 18 months of life have been the subjects of a number of reports, reviews, and commentaxies over the past decade.1#{176} Sufficient knowledge has been accumulated to permit a clear statement of dietary recommendations. Implementation of these would assure a satisfactory iron intake for the majority of North American infants and minimize the incidence of serious iron deficiency. Several official recommendations concerning human iron requirements have been made. 9 Not all have emphasized clearly the unique requirements of infants, especially low birth weight infants. In addition, they have failed to agree upon dietary requirements during the first year of life and have not indicated practical ways of achieving a satisfactory iron intake. The present memorandum reviews current knowledge concerning iron needs of infants, attempts to quantitate iron requirements in relation to birth weight and age, and examines practical methods for assuring adequate iron intakes. In addition, certain persistent gaps in our understanding of iron metabolism, subjects of controversy, and areas of investigative potential are reviewed.
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Iron Balance and Requirements in Infancy
134 IRON BALANCE AND REQUIREMENTS IN INFANCY H UMAN iron requirements and metabolism of iron during the first 18 months of life have been the subjects of a number of reports, reviews, and commentaxies over the past decade.1#{176} Sufficient knowledge has been accumulated to permit a clear statement of dietary recommendations. Implementation of these would assure a satisfactory iron intake for t...
متن کاملIron Balance and Requirements in Infancy
134 IRON BALANCE AND REQUIREMENTS IN INFANCY H UMAN iron requirements and metabolism of iron during the first 18 months of life have been the subjects of a number of reports, reviews, and commentaxies over the past decade.1#{176} Sufficient knowledge has been accumulated to permit a clear statement of dietary recommendations. Implementation of these would assure a satisfactory iron intake for t...
متن کاملIron balance and requirements in infancy.
134 IRON BALANCE AND REQUIREMENTS IN INFANCY H UMAN iron requirements and metabolism of iron during the first 18 months of life have been the subjects of a number of reports, reviews, and commentaxies over the past decade.1#{176} Sufficient knowledge has been accumulated to permit a clear statement of dietary recommendations. Implementation of these would assure a satisfactory iron intake for t...
متن کاملIron Balance and Requirements in Infancy
134 IRON BALANCE AND REQUIREMENTS IN INFANCY H UMAN iron requirements and metabolism of iron during the first 18 months of life have been the subjects of a number of reports, reviews, and commentaxies over the past decade.1#{176} Sufficient knowledge has been accumulated to permit a clear statement of dietary recommendations. Implementation of these would assure a satisfactory iron intake for t...
متن کاملIron requirements in infancy and childhood.
A critical characteristic of iron nutrition in infancy, as compared to adults, is the greater dependency of the infant on external sources of iron for daily red cell production. Dallman et al. (1) have calculated that in a 1-year-old, 10-kg infant, dietary iron must provide 30% of the needs for hemoglobin iron turnover as compared to only 5% in the adult male (Table 1). This imposes disproporti...
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