Why are some patients of diabetes treated by giving injections of insulin?
Insulin is a hormone produced in pancreas and that helps to control high glucose level. It converts the food which we are taking into the form of energy in the bloodstream.
Diabetes occurs when too much sugar is taken in food or found in blood (high blood glucose level). If any patient is suffering from diabetes, doctors give that patient a insulin injection and it cannot be taken as a pill because it is made up of protein or secreted in pancreas that if taken through mouth, then it is denatured by the digestive process.
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