SILVA, Rui F.; BECO, Ana    MARQUES, Sofia. What water should I drink, Doc?. []. , 33, 3, pp.151-154. ISSN 0872-0169.  https://doi.org/10.32932/pjnh.2019.10.032.

Chronic kidney disease (CKD) is commonly associated with normal anion gap metabolic acidosis and its correction has shown multiple benefits, such as improved bone health and nutritional status, a slower progression of CKD and a lower incidence of end-stage renal disease. Kidney Diseases Improving Global Outcomes 2013 recommend maintaining serum bicarbonate concentration in the normal range (≥ 22mEq/L), which is usually accomplished by using a starting dose of 0.5 - 1mEq/kg/day of bicarbonate supplements. Nutritional strategies incorporating base-producing fruits and vegetables might show equal value. In this context, we analyzed the ingredients instead of labels of widely sold bottled water in Portugal to identify the most bicarbonate-rich bottled water which might help mitigate the complications of CKD chronic metabolic acidosis. We included 32 varieties of bottled water sold in Portuguese supermarkets. If a 70kg-adult is advised to ingest a bicarbonate dose of 0.5 - 1 mEq/kg/day, this amount could be supplied by 1 - 2 liters of Frize® per day, approximately the same as in Pedras Salgadas® and Vidago® (1.1 - 2.2 liters). We concluded that, along with nutritional strategies addressing dietary H+ reduction, Portuguese CKD patients with chronic metabolic acidosis could benefit from drinking water brands such as Frize®, Pedras Salgadas® or Vidago®.

: chronic kidney disease; metabolic acidosis; water.

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