More than 1 million medical visits in America each year are due to kidney stones, according to the University of Pittsburgh Medical Center. And about 9 percent of American adults develop kidney stones ...

Oxalic acid is a naturally occurring compound in many fruits, vegetables, nuts, and whole grains. While small amounts of oxalic acid are not harmful, this compound can inhibit the absorption of other ...

Researchers gaining a better understanding of the genetic basis for oxalate absorption. Nephrolithiasis results from an interaction between diet and genetic predisposition. Most renal stones contain ...