What Insulin Sensitivity Factor

The insulin sensitivity factor (ISF) is a measure of how sensitive your body is to insulin. It is calculated by dividing the amount of insulin you need to take to lower your blood sugar by 50% by your weight in kilograms. A low ISF means that you are more sensitive to insulin and need less insulin to lower your blood sugar. A high ISF means that you are less sensitive to insulin and need more insulin to lower your blood sugar.

The ISF can vary depending on a number of factors, including:

* Your age

* Your weight

* Your activity level

* Your diet

* Your medications

The ISF can also change over time. For example, it may increase if you gain weight or become less active. It may decrease if you lose weight or become more active.

If you are taking insulin, it is important to work with your doctor to determine your ISF. This will help you to ensure that you are taking the correct dose of insulin and that your blood sugar is well-controlled.