I would like to know the GI value of Glucose, Galactose and Sucrose.


Pure glucose serves as a reference point, and is given a Glycemic Index (GI) of 100. Sucrose which is comprised of glucose and fructose, has a GI of 65. Galactose on the other hand has a lower GI compared with Fructose (GI=23) as it elicits a lower glycaemic response than fructose.



Wolever, T. M. S. (2006). The Glycaemic Index: A Physiological Classification of Dietary Carbohydrate (pp. 64-69). Oxfordshire: CABI Publishing.

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