First Time User? Sign Up Now
First Time User? Enroll now.
Home > Fitness & Health > Health Library > Glycemic Index
Glycemic index refers to a food's ability to raise blood sugar to a particular level within a given period of time. Glycemic index applies only to carbohydrate foods because they are the foods that most affect blood sugar levels.
Some starchy foods have a high glycemic index. These foods may cause high blood sugar levels after meals. High glycemic foods include instant rice, baked potatoes, and raisins. Foods that contain mostly fat and protein do not affect blood sugar levels very much, so their glycemic index is not calculated.
Most nonstarchy vegetables, fruits, and legumes have a low glycemic index. These foods may help prevent high blood sugar after meals. Low glycemic foods include rye grain, dried beans and lentils, apricots, and peanuts.
The glycemic index of a food can change depending on the variety of the food (for example, red potato or white potato), its ripeness, how it is prepared (for example, juiced, mashed, or ground), how it is cooked, how long it is stored, and the foods eaten with it.
Current as of:
April 16, 2019
Medical Review:E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Rhonda O'Brien, MS, RD, CDE - Certified Diabetes Educator & Colleen O'Connor, PhD, RD - Registered Dietitian
To learn more about Healthwise, visit Healthwise.org.
© 1995-2019 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
509 N. Bright Leaf Blvd.
Smithfield, NC 27577
Phone (919) 934-8171
Employee Intranet Login
Copyright 2020 UNC Health Care. All rights reserved.