Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Nutrition for Advanced Chronic Kidney Disease in Adults ?
    ### Response:
    Too much sodium in a person's diet can be harmful because it causes blood to hold fluid. People with CKD need to be careful not to let too much fluid build up in their bodies. The extra fluid raises blood pressure and puts a strain on the heart and kidneys.
    