The Coordinated Research Program on Human Dietary Intakes of Biologically Important Trace Elements is a study, initiated in 1984 by the International Atomic Energy Agency, of foods typically consumed in 11 countries around the world. Participating countries include Brazil, China, Canada, Iran, Italy, Spain, Sudan, Sweden, Thailand, Turkey, and the U.S. Food samples, currently being collected, will be analyzed for energy, fiber, phytate, and 25 minerals, some of which are essential for health and others that may be toxic in large amounts. Essential minerals include calcium, iron, sodium, and potassium. Potentially toxic minerals include cadmium, lead, arsenic, selenium, mercury, aluminum, antimony, chlorine, cobalt, copper, flourine, iodine, magnesium, manganese, molybdenum, nickel, phosphorus, tin, vanadium, and zinc. Laboratory techniques used for preparing and analyzing food composites, and for evaluating the nutrient content of samples are identified. Background information is provided on the dietary habits of specific population groups in the countries being studied. A major objective of the study is to provide reliable data on trace element nutrition in parts of the world where such information is lacking or questionable. It is hoped that data on nutritional inadequacies will lead to the development of food fortification programs, or other types of intervention, to improve the diets of target population groups.(aje).
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