Dietary Recommendations for Bariatric Patients to Prevent Kidney Stone Formation

Author(s)

Ormanji, Milene S. ^[1] ; Rodrigues, Fernanda G. ^{[1, 2]} ; Heilberg, Ita P. ^{[1, 2]}

Affiliation

^[1] Univ Fed Sao Paulo, Nephrol Div, BR-04023062 Sao Paulo - Brazil

^[2] Univ Fed Sao Paulo, Dept Nutr, BR-04023062 Sao Paulo - Brazil

• Document type: Review article
• Source: NUTRIENTS; v. 12, n. 5 MAY 2020.
• Web of Science Citations: 0

Abstract

Bariatric surgery (BS) is one of the most common and efficient surgical procedures for sustained weight loss but is associated with long-term complications such as nutritional deficiencies, biliary lithiasis, disturbances in bone and mineral metabolism and an increased risk of nephrolithiasis, attributed to urinary metabolic changes resultant from low urinary volume, hypocitraturia and hyperoxaluria. The underlying mechanisms responsible for hyperoxaluria, the most common among all metabolic disturbances, may comprise increased intestinal oxalate absorption consequent to decreased calcium intake or increased dietary oxalate, changes in the gut microbiota, fat malabsorption and altered intestinal oxalate transport. In the current review, the authors present a mechanistic overview of changes found after BS and propose dietary recommendations to prevent the risk of urinary stone formation, focusing on the role of dietary oxalate, calcium, citrate, potassium, protein, fat, sodium, probiotics, vitamins D, C, B6 and the consumption of fluids. (AU)

• FAPESP's process: 18/17867-0 - The Relationship between bone mineral metabolism and autonomic nervous system in obesity.
• Grantee: Ita Pfeferman Heilberg
• Support type: Regular Research Grants