History of the Glycemic Index - Johanna Burani, MS, RD, CDE

Johanna Burani, MS, RD, CDE www.EatGoodCarbs.com

A scale from 0-100 that ranks digested carbohydrates by how much they raise blood glucose levels compared to a reference food (glucose). www.EatGoodCarbs.com

 Starches: breads, breakfast cereals, pasta, rice, soups  Starchy vegetables: corn, legumes, peas, potatoes, winter squash  Dairy: milk, yogurt  Fruit: all forms (fresh, frozen, dried, canned)  Sugars: honey, maple syrup, white/brown sugar www.EatGoodCarbs.com

 Proteins  Fats  Meats  Oils  Poultry  Butter  Fish  Margarine  Eggs  Shortening  Cheese www.EatGoodCarbs.com

Carbohydrates = body’s fuel of choice The body chooses carbohydrates first to break down into immediate energy. www.EatGoodCarbs.com

 1981, David Jenkins and team, University of Toronto  Alternative system for classifying carbohydrates  Not based on the exchange system www.EatGoodCarbs.com

 All digested starches produce similar after-meal blood glucose responses (low).  All digested sugars produce similar after-meal blood glucose responses (high). www.EatGoodCarbs.com

 62 commonly eaten carbohydrates  5 – 10 healthy fasting volunteers  Blood glucose responses to test food measured over 2-hour period  Compared to an average of three blood glucose responses to reference food (glucose) measured over 2-hour period www.EatGoodCarbs.com

Low 0-55 Moderate 56-69 High 70+ www.EatGoodCarbs.com

Different carbohydrate sources raised blood glucose levels to varying degrees: white bread (starch) = GI value of 69 = high ice cream (with sugar) = GI value of 36 = low Carbohydrates should be classified by their physiological impact on the body rather than on their chemical structure. www.EatGoodCarbs.com

 UK Diabetes  Diabetes Australia  European Association for the Study of Diabetes  American Diabetes Association  Canadian Dietetic Association www.EatGoodCarbs.com

 www.EatGoodCarbs.com  www.GlycemicIndex.com  www.FIFTY50.com www.EatGoodCarbs.com

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History of the Glycemic Index - Johanna Burani, MS, RD, CDE

by Nutrition Works, LLC on Jan 23, 2010

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History of the Glycemic Index - Johanna Burani, MS, RD, CDE — Presentation Transcript