Aluminium and strontium in calcium supplements and antacids: a concern to haemodialysis patients?

Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
Eric Da SilvaD V Heyd

Abstract

Trace elements, most notably aluminium and strontium, have been noted for their role in the development of secondary bone disorders in haemodialysis patients. Due to the large dosages of calcium required for the maintenance of dialysis patients, this study investigated whether the source of calcium chosen for supplementation, including the form of administration (i.e. chewable forms or capsules), has an influence on the total amount of strontium and aluminium ingested daily. A convenience sample of various calcium supplement tablets and antacids was acquired, and strontium and aluminium quantification was performed by wavelength-dispersive X-ray fluorescence spectrometry. The use of readily available oyster shell-based calcium was found potentially to increase the total amount of ingested strontium substantially with concentrations reaching (2.26 +/- 0.05) (mg Sr).(g Ca)(-1), while the use of antacids or chewable supplements was found to contain concentrations reaching as high as (1.2 +/- 0.3) (mg Al).(g Ca)(-1) in the supplements analysed within this work. It is recommended that the choice of calcium supplement prescribed to individuals undergoing haemodialysis be closely regulated and noted as a possible factor in the prevale...Continue Reading

References

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Citations

Dec 3, 2016·Biological Trace Element Research·Maria L Reina de la TorreMiguel Navarro-Alarcón

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Methods Mentioned

BETA
X-ray

Software Mentioned

SpectraPlus®

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