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Related Experiment Videos

What on earth are we drinking?

P D Mayne1, L Edwards

  • 1Department of Chemical Pathology, Westminster Hospital, London.

British Journal of Urology
|August 1, 1990
PubMed
Summary
This summary is machine-generated.

Bottled water calcium content varies widely, potentially increasing intake for kidney stone patients. Some bottled waters should be avoided by individuals prone to upper urinary tract stones.

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Area of Science:

  • Nephrology
  • Food Science
  • Public Health

Background:

  • Increasing variety and consumption of bottled waters.
  • Significant variation in calcium content (0-500+ mg/l) across bottled waters.
  • High fluid intake recommended for upper urinary tract stone patients.

Purpose of the Study:

  • To analyze calcium content in bottled waters.
  • To inform kidney stone patients about potential calcium intake from bottled water.
  • To identify bottled waters that may be unsuitable for stone formers.

Main Methods:

  • Analysis of bottled drinking water samples.
  • Analysis of tap water samples from the British Isles.
  • Comparison of calcium content across different water types.

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Main Results:

  • Enormous variation in calcium levels found in bottled drinking waters.
  • Consumption of certain bottled waters can significantly increase daily calcium intake (up to 1.5 g).
  • Identification of specific bottled waters that may pose a risk to stone formers.

Conclusions:

  • Stone formers should be aware of the calcium content in bottled water.
  • Certain bottled waters may contribute to excessive calcium intake, potentially impacting stone formation.
  • Recommendations for bottled water selection for patients with upper urinary tract stones are suggested.