Abstract
The Second Conference for Federally-Supported Human Nutrition Research Units and Centers, sponsored by the Interagency Committee on Human Nutrition Research, addressed the use of stable isotopes in human nutrition and methodologies for estimating body composition. New mass spectrometers of various types are being used to study absorption, utilization, and interactions of zinc, copper, iron, calcium, and other minerals. Stable isotopes also are being used to determine differences in energy expenditure and mineral kinetics in a variety of populations including pre- and postmenopausal women. New techniques such as infrared interactance, bioelectrical impedance, total body electrical conductivity, and acoustic techniques show much promise for estimating body composition. In vivo neutron activation analysis is providing data that is rapidly becoming the gold standard for other body composition studies. Future meetings of Federally-supported nutrition research units and centers will focus on other human nutrition research topics and will be held biannually.
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