Glycemic Index, Glycemic Load and Glycemic Response : An International Scientific Consensus Summit
An international panel of experts has formed the "International Carbohydrate Quality Consortium (ICQC)" which met in Stresa on June 6-7, 2013 and discussed the importance of carbohydrate quality in addition to quantity.
Scientific Consensus Statement (for full press release by NFI and Oldways, click here)
1. Glycemic response: is the simple term for the post-prandial blood glucose concentration (PPG) elicited by a food or a meal.
2. Glycemic Index (GI): Conceptually, GI is the glycemic response elicited by a portion of a carbohydrate-rich food containing 50g (or in some cases 25g) available carbohydrate expressed as a percentage of that elicited by 50g (or 25g) glucose. GI is precisely defined by the ISO (International Organization for Standardization) method 26642:2010 (http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=43633)
3. Glycemic load (GL): is the product of GI and the total available carbohydrate content in a given amount of food (GL = GI x available carbohydrate/given amount of food). Available carbohydrates can have different modes of expression: g per serving, g per 100g food, g per day intake, and g per 1000 kJ or 1000 calories, dependent on the context in which GL is used. Thus GL has corresponding units of g per serving, g per 100 g food, and g per 1000 kJ or 1000 calories.
4. Available carbohydrate: Is the carbohydrate in foods that is digested, absorbed and metabolised as carbohydrate. Available carbohydrate is sometimes referred to as glycemic carbohydrate.
This International Scientific Consensus Summit was co-organized by the Nutrition Foundation of Italy and Oldways.
Text courtesy of Oldways and Nutrition Foundation of Italy.