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Body Composition

The world is experiencing a nutrition transition in which undernutrition coexists with overnutrition. To guide public health and nutrition policy makers and stakeholders in assessing the situation and in the evaluation of nutrition intervention programmes to address both under and overnutrition, techniques are needed that provide reliable information on body composition (fat and lean mass). The IAEA provides information on the theoretical background as well as the practical application on the measurement of body composition using stable isotope dilution and dual-energy X ray absorptiometry (DXA) in the related links to the right.


IAEA Publications

Assessment of Body Composition and Total Energy Expenditure in Humans Using Stable Isotope Techniques IAEA Human Health Series No. 3;19 October 2009, 133 pp. International Atomic Energy Agency, Vienna, Austria.
This publication provides information on the theoretical background, including safety considerations, as well as the practical application of state of the art methodologies to monitor changes in body composition and total energy expenditure, and reflects recent advances in analytical techniques.

Introduction to Body Composition Assessment Using the Deuterium Dilution Technique with Analysis of Saliva Samples by Fourier Transform Infrared Spectrometry IAEA Human Health Series No. 12; 2011, 77 pp. International Atomic Energy Agency, Vienna, Austria.
This publication provides information on the theoretical background as well as the practical application of state of the art methodology to monitor changes in body composition, based on analysis of deuterium in saliva by FTIR.
More languages available: Spanish Edition, French Edition.

Introduction to Body Composition Assessment Using the Deuterium Dilution Technique with Analysis of Urine Samples by Isotope Ratio Mass Spectrometry IAEA Human Health Series No. 13; 2011, 65 pp. International Atomic Energy Agency, Vienna, Austria.
This publication complements the IAEA publication Assessment of Body Composition and Total Energy Expenditure in Humans by Stable Isotope Techniques, by providing practical guidance on the use of the stable isotope technique to assess body composition in settings where biological samples can be analysed by isotope ratio mass spectrometry (IRMS).
More languages available: Spanish Edition, French Edition.

Dual Energy X ray Absorptiometry for Bone Mineral Density and Body Composition Assessment
IAEA Human Health Series No. 15; 2011, 118 pp. International Atomic Energy Agency, Vienna, Austria.
This publication provides information on the theoretical background as well as the practical application of Dual-Energy X ray Absorptiometry to measure bone mineral density and to assess body composition.
More languages available: Arabic Edition.

Body Composition Assessment from Birth to Two Years of Age
IAEA Human Health Series No. 22; 2013, 62 pp. International Atomic Energy Agency, Vienna, Austria.
This publication provides practical information on the assessment of body composition from birth up to two years of age and is intended for nutritionists, paediatricians and other health professionals.



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