Question

Why do some people take injections of insulin before their meal? What is the role of insulin?

Answer 1

it decrease blood sugar level after the meal...
it is sometimes taken after the meal because the sugar in the food taken has to be neutralised...

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Answer 2

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Insulin is a hormone made in your pancreas, a gland located behind your stomach. It allows your body to use glucose for energy. Glucose is a type of sugar found in many carbohydrates.

After a meal or snack, the digestive tract breaks down carbohydrates and changes them into glucose. Glucose is then absorbed into your bloodstream through the lining in your small intestine. Once glucose is in your bloodstream, insulin causes cells throughout your body to absorb the sugar and use it for energy.

Insulin also helps balance your blood glucose levels. When there’s too much glucose in your bloodstream, insulin signals your body to store the excess in your liver. The stored glucose isn’t released until your blood glucose levels decrease, such as between meals or when your body is stressed or needs an extra boost of energy.


Understanding diabetes
Diabetes occurs when your body doesn't use insulin properly or doesn't make enough insulin. There are two main types of diabetes: type 1 and type 2.

Type 1 diabetes is a type of autoimmune disease. These are diseases that cause the body to attack itself. If you have type 1 diabetes, your body can’t make insulin. This is because your immune system has destroyed all the insulin-producing cells in your pancreas. This disease is more commonly diagnosed in young people, although it can develop in adulthood.

In type 2 diabetes, your body has become resistant to the effects of insulin. This means your body needs more insulin to get the same effects. Therefore, your body overproduces insulin to keep blood glucose levels normal. However, after many years of overproduction, the insulin-producing cells in your pancreas burn out. Type 2 diabetes affects people of any age, but typically develops later in life.

Insulin as treatment for diabetes
Injections of insulin can help treat both types of diabetes. The injected insulin acts as a replacement for or supplement to your body’s insulin. People with type 1 diabetes can’t make insulin, so they must inject insulin to control their blood glucose levels.

Many people with type 2 diabetes can manage their blood glucose levels with lifestyle changes and oral medication. However, if these treatments don’t help to control glucose levels, people with the condition may also need insulin to help control their blood glucose levels.