2. Lower Diabetes Risk
Onions are also fantastic for lowering your risk of developing type 2 diabetes. This form of diabetes occurs when insulin become ineffective at processing glucose. It typically happens due to a diet chronically high in sugar.
When you eat onion, it increases the amount of available insulin in your system. The allyl propyl disulphide in onions take up some of the spots in the liver where insulin become inactivated, thereby leaving more insulin in the bloodstream to process glucose.