In the following food items, which one has the highest 'Glycemic Index': (A) Corn - flakes, (B) Brown rice, (C) Ice - cream, (D) Whole wheat bread
Answer is A. Glycemic index :

Corn flakes - 80 - 90.
Whole wheat bread - 70 - 79.
Brown rice - 60 - 69.
Ice cream - <40.