Multivitamins co-intake can reduce the prevalence of kidney stones: a large-scale cross-sectional study

This research aimed to explore the association between changes in the intake of common individual vitamins and combinations of vitamins and the prevalence of kidney calculi. We used data from NHANES to investigate the association between nine common vitamins and kidney stone prevalence. Participants were clustered into several vitamin exposure patterns using an unsupervised K-means clustering method. We used logistic regression models and restrictive cubic spline curves to explore the influence of vitamins. The regression model exposed that compared to lower intake, high intake of vitamin B6 [Q4: OR (95