Introduction

General Overview of Diabetes and Food

Food Groups and Diabetes

Eating for Target Blood Glucose Levels

Eating for Cardiovascular Health

Diabetes Medications

Resources and Recommended Websites

About the Authors

Test Your Knowledge

 

Diabetes Medications

What are the types of insulin?

Insulin is classified based on how quickly it takes effect.  There are four categories:

• Rapid acting should be taken just before or just after eating.  It begins to lower blood glucose in less than 15 minutes.
• Short acting should be taken 30 minutes before a meal.  It begins to lower blood glucose within 30 minutes to 1 hour.
• Intermediate acting has an effect for 14-20 hours, depending on the type, so it is typically only taken once per day.
• Long acting has an effect for 20-30 hours, depending on the type, so it is only taken once per day.

Insulin can be packaged in vials, pens/cartridges, or inhaled. There are also pre-mixed insulins that contain a combination of insulin types described above.

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This document is a source of information only, and is not medical advice.