Insulin: things you should know

Insulin is a hormone produced by the pancreas to control the amount of glucose (sugar) in the blood. In people who have diabetes, the pancreas does not produce any or enough insulin, or is unable to effectively use the insulin it does produce. As a result, glucose builds up in the bloodstream, potentially leading to serious health problems such as blindness, heart disease, kidney problems, amputation, nerve damage and erectile dysfunction.

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