Insulin is a hormone made by the pancreas. The pancreas is an organ behind the stomach that is the main source of insulin in the body.

Insulin is responsible for allowing glucose in the blood to enter cells, providing them with the energy to function. A lack of effective insulin plays a key role in the development of diabetes.

What is the role of Insulin?

The cells in the body need sugar for energy. Insulin is often described as a “key,” which unlocks the cell to allow sugar to enter the cell and be used for energy.

Insulin helps balance out blood sugar levels and keeps them in a normal range. 

What is Insulin resistance?

In some people, especially those who are overweight or inactive, insulin is not effective in transporting glucose into the cells. This inability of insulin to exert its effect on cells is called insulin resistance.

When the pancreas cannot produce enough insulin to overcome insulin resistance, it may lead to Type 2 diabetes.

Does every person with Diabetes need to take Insulin?

No. Insulin is mandatory for people with type 1 diabetes, but many people with type 2 diabetes can manage blood sugar levels with diet, exercise, and oral medications. Some individuals with type 2 diabetes may also need insulin for control.

Insulin Injections

Insulin injection is a safe way to control sugar levels.But insulin injections should be taken only with the advice of the doctor.

There are different types of insulin that your doctor may recommend depending upon the severity of diabetes.

Some major types of insulin injections are:

Type Onset Time Peak Action Time Overall Effect Time
Rapid-acting insulin 5-15 mins 30-90 mins 3-5 hours
Short-acting insulin 30-60 mins 2-3 hours 5-8 hours
Intermediate-acting 2-4 hours 4-12 hours 10-18 hours
Long-acting insulins 2-10 hours 6-16 hours 16-24 hours




ERemedium blogs are for informational purposes only and should not be construed as advice or as a substitute for consulting a physician. It is not a substitute for medical advice or treatment from a healthcare professional.