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Which Type of Water Is Recommended for Patients with Stone Disease (Hard or Soft Water, Tap or Bottled Water): Evidence from a Systematic Review over the Last 3 Decades

Abstract

Purpose of Review

The role of the mineral constituents in water and their role in kidney stone disease (KSD) have been a long-standing subject of debate. The aim of our systematic review was to evaluate the relevance of different types of water in stone disease.

Recent Findings

Studies to date have had varying results regarding the importance of hardness of water which is mostly determined by its calcium content. Other elements including magnesium and bicarbonate also play a crucial role in prevention of renal stones. Patients with stone disease are provided varying advice due to a lack of consensus on the types of water recommended.

Summary

Increased fluid intake prevents stone formation. Our review of the literature suggests that hard water and bottled mineral water might be helpful for calcium stone formers. High calcium content in them leads to hypercalciuria; however, other factors also influence stone formation and the overall impact seems to be a reduction in calcium stone formation. The mineral content varies across different water types but high magnesium and bicarbonate content in water is also recommended for kidney stone patients.

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Correspondence to Sadaf Karim Sulaiman.

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Edgar Tavares da Silva and Arnaldo Figueiredo each declare no potential conflicts of interest.

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Sulaiman, S.K., Enakshee, J., Traxer, O. et al. Which Type of Water Is Recommended for Patients with Stone Disease (Hard or Soft Water, Tap or Bottled Water): Evidence from a Systematic Review over the Last 3 Decades. Curr Urol Rep 21, 6 (2020). https://doi.org/10.1007/s11934-020-0968-3

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  • DOI: https://doi.org/10.1007/s11934-020-0968-3

Keywords

  • Water
  • Hydration
  • Tap
  • Bottled
  • Kidney stone disease
  • Urolithiasis