In this study, 11 Siberian Huskies were fed different carbohydrate sources and their glycemic index was measured post-prandial. The purpose of this study is to examine the effect of different carbohydrate sources in pet food on glucose metabolism and relate this to the starch types present in the diet. The results of this study will be used to fill gaps in basic knowledge regarding the ability of dogs to handle carbohydrates from different sources and could allow for the formulation of low glycemic index diets which may provide long term health benefits to dogs.