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Magnesium, calcium, copper, and zinc in meals

Correlations related to the epidemiology of ischemic heart disease

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Abstract

Meals of 12 diets were prepared from conventional foods with precautions against contamination by metallic elements because of epidemiologic associations between ischemic heart disease and the metabolism of magnesium, calcium, copper, and zinc. Magnesium, calcium, copper, and zinc were measured by atomic absorption spectrometry with satisfactory accuracy and precision.

The mean daily amount of copper in the diets was less than the apparent adult requirement. Mean amounts of magnesium and zinc were close to apparent requirements; however, adults consuming amounts less than one standard deviation below these means may be depleting body stores and be at risk of pathology.

Magnesium and copper were highly correlated (r=0.849,P=0.0001) in meals. This and other significant correlations probably will prevent the relationships of these elements to ischemic heart disease from being elucidated by epidemiology. Metabolic experiments will be necessary to differentiate among several hypotheses.

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Authors and Affiliations

  1. Agricultural Research Service, Grand Forks Human Nutrition Research Center, United States Department of Agriculture, 58202, Grand Forks, North Dakota

    Leslie M. Klevay

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  1. Leslie M. Klevay
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Klevay, L.M. Magnesium, calcium, copper, and zinc in meals. Biol Trace Elem Res 4, 95–104 (1982). https://doi.org/10.1007/BF02783250

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  • DOI: https://doi.org/10.1007/BF02783250

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