The finding suggests that patients may want to limit their intake of meats and increase their consumption of fruits and vegetables to help protect their kidneys.
Nutrition has important effects on a variety of aspects of health, including those related to kidney function.
For example, for patients with chronic kidney disease (CKD), studies have shown that diet can significantly influence the risk of progression to kidney failure.
Tanushree Banerjee, from the University of California, San Francisco (UCSF)) and her colleagues examined whether acid-inducing diets might play a role.
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The researchers analysed information on 1,486 adults with CKD who were participating in the National Health and Nutrition Examination Survey III (NHANES III), a large national sample of community dwelling adults. Patients were followed for a median of 14.2 years.
The team found that higher levels of dietary acid load were strongly linked with progression to kidney failure among patients.
Patients who consumed high acid diets were three-times more likely to develop kidney failure than patients who consumed low acid diets.
"Patients with chronic kidney disease may want to pay more attention to diet consumption of acid rich foods to reduce progression to kidney failure, in addition to employing recommended guidelines such as taking kidney-sparing medication and avoiding kidney toxins," said Banerjee.
The study appears in the Journal of the American Society of Nephrology (JASN).