Below is an instruction from Human. Write a response.
    ### Instruction:
    What causes Kidney Stones in Adults ?
    ### Response:
    Kidney stones can form when substances in the urinesuch as calcium, oxalate, and phosphorusbecome highly concentrated. Certain foods may promote stone formation in people who are susceptible, but scientists do not believe that eating any specific food causes stones to form in people who are not susceptible.
    