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Adding more onions to your diet is good if you have diabetes because onions help to regulate blood glucose spikes after eating.
One study found that supplementing the diet with onions had a blood glucose-lowering effect. Onions extracts reduced fasting blood glucose in people with type 1 diabetes and type 2 diabetes.
The results of other medical trials have found that onion extracts lower blood glucose levels after a meal. The lowering effect may be due to delaying absorption of glucose through inhibition of the enzyme sucrase in