The link between high sugar intake and increased kidney stone risk urges dietary caution

Kidney stones, those painful crystalline formations in the urinary system, affect about 1 in 10 people worldwide. Besides genetics and environmental roles, added sugar intake can also play a role, according to a recent study published in Frontiers.

This study surveyed over 28,000 individuals and discovered a strong link between consuming more added sugar and a higher risk of kidney stones. Kidney stones, which can cause pain, blood in the urine, and nausea, are becoming more common. Family history, dehydration, high-protein diets, excessive salt and sugar intake, and obesity contribute to their formation.

While the health risks of added sugars in food and drinks are well documented, their role in kidney stone development is still being explored. This study analysed data from the US National Health and Nutrition Examination Survey, spanning 2007 to 2018.

It found that people who consumed more added sugar had a greater risk of kidney stones, even after accounting for factors like age, gender, and lifestyle.  In simple terms, people who ate more added sugar were more likely to get kidney stones. Those who followed dietary guidelines and consumed less than 5% of their daily calories from added sugars had a lower risk compared to those who consumed 25% or more.