Healthy individuals ages 18-75 are needed for a study examining the relationship between oxalate handling in the blood and urine in persons with and without chronic kidney disease. The study involves consuming prepared meals over 5 days twice, one-day long visit in our clinical research unit, and the collection of urine and blood. Compensation up to $360. For more information, call 205-224-7324 or email kidneystoneresearch@uabmc.edu.