
This range can vary from 6-30 grams or more of carbohydrate depending on an individual’s sensitivity to insulin. Generally, one unit of rapid-acting insulin will dispose of 12-15 grams of carbohydrate. The insulin to carbohydrate ratio represents how many grams of carbohydrate are covered or disposed of by 1 unit of insulin. Bolus – Carbohydrate coverage The bolus dose for food coverage is prescribed as an insulin to carbohydrate ratio. This is called the bolus insulin replacement. The other 50-60% of the total daily insulin dose is for carbohydrate coverage (food) and high blood sugar correction. The basal or background insulin dose usually is constant from day to day. This is called background or basal insulin replacement. In this section, you will find: First, some basic things to know about insulin: Approximately 40-50% of the total daily insulin dose is to replace insulin overnight, when you are fasting and between meals. Your insulin dose regimen provides formulas that allow you to calculate how much bolus insulin to take at meals and snacks, or to correct high blood sugars.


Your provider will prescribe an insulin dose regimen for you however, you still need to calculate some of your insulin doses. For example, 40-50% of the total daily insulin dose is to replace insulin overnight.

You'll also need to know some basic things about insulin. You'll need to calculate some of your insulin doses.
