This is what to do:

First boil an egg, and peel it. Then, prick it several times with a fork, and put it in a container. Pour some vinegar over it, and leave it during the night.

In the morning, you should eat the egg with a glass of warm water mixed with a tablespoon of vinegar.  Repeat this treatment for several days.

A hard-boiled egg can be a handy high-protein snack if you have diabetes. The protein will help keep you full without affecting your blood sugar. Protein not only slows digestion, it also slows glucose absorption, which is very helpful if you have diabetes.

You will soon notice the result that the blood sugar will drop, as a result of consuming boiled egg.