What is the Glycemic Index?

The glycemic index or GI ranks carbohydrates according to their effect on our blood glucose levels. The glycemic index ranks foods on how they affect our blood glucose levels. This index measures how much your blood glucose increases in the two or three hours after eating. The glycemic index is about foods high in carbohydrates. Foods high in fat or protein don't cause your blood glucose level to rise much.

Glucose is given an arbitrary value of 100 and other carbs are given a number relative to glucose. Faster carbs (higher numbers) are great for raising low blood sugars and for covering brief periods of intense exercise. Slower carbs (lower numbers) are helpful for preventing overnight drops in the blood sugar and for long periods of exercise.

Choosing low GI carbs - the ones that produce only small fluctuations in our blood glucose and insulin levels - is the secret to long-term health reducing your risk of heart disease and diabetes and is the key to sustainable weight loss.

Glycemic index of foods

GI values can be interpreted intuitively as percentages on an absolute scale and are commonly interpreted as follows:

Classification GI range Examples
Low GI 55 or less most fruit and vegetables (except potatoes, watermelon), grainy breads, pasta, legumes/pulses, milk, products extremely low in carbohydrates (fish, eggs, meat, nuts, oils), brown rice
Medium GI 56 - 69 whole wheat products, basmati rice, orange, sweet potato, table sugar, most white rices (eg, jasmine),
High GI 70 and above corn flakes, baked potato, watermelon, croissant, white bread, extruded cereals (eg, Rice Krispies), straight glucose (100)

More Information

Related Articles:

| Articles
| Low Carb Diets and Cholesterol. Research and Testimonials
| Meal Frequency Increase Prolonges Carbohydrate Absorption
| Diet Plan
| Low Sugar Diet for the Hypoglycemics


 
disclaimer

The information provided on BestLowCarbs.com is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational purposes and does not constitute the practice of medicine. We encourage all visitors to see a licensed physician or nutritionist if they have any concerns regarding health issues related to diet, personal image and any other topics discussed on this site. Neither the owners or employees of BestLowCarbs.com nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. Please see our Legal Statement for further information.

Poll

What low carb plan have you tried the most?
Atkins Diet
52%
South Beach Diet
12%
No White Diet - no white flour, potatoes, white rice
11%
No sugars, high sugar fruit, starchy vegetables
6%
I created my own low carb plan
20%
Total votes: 1068

User login

lowcalories