This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small & Large Intestine, Subject name: Surgery
High fiber diet reduces risk of the following except: 
Select and explain. 
A. IBD, B. Ca Colon, C. Sigmoid volvulus, D. Diverticulitis
C: Sigmoid volvulus
Answer: C: Sigmoid volvulus 
Explanation: Ans. (c) Sigmoid volvulusRef: Sahiston Textbook of Surgery, 20th edition, Pages 1330, 1334 & 1339* Sigmoid volvulus accounts for two-thirds of all cases of colonic volvulus.* Factors associated with sigmoid volvulus:# Constipation# Old age (7th-8th decade)# Psychiatric patients# High fiber diet intake countries* High fiber diet is protective in:# Cancer colon# Ulcerative colitis# Diverticulitis