This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2019, Subject name: Medicine
Which of these is the Renal feed for CKD patients? 
Select and explain. 
A. Low calorie low volume, B. Low calorie high volume, C. High calorie low volume, D. High calorie high volume
C: High calorie low volume
Answer: C: High calorie low volume 
Explanation: OPTION C - CKD patients have catabolic metabolism so they will require higher caloric as lot of muscle wasting. Since the disease CKD has affected kidney, we prefer to give low volume due to decrease capacity of kidney to excrete.