are oranges high glycemic
Oranges have a low glycemic index. Photo Credit Nick White/Photodisc/Getty Images. The glycemic index is a measure of how quickly the carbohydrates found in food provides the body with energy. Some foods release their energy quickly and are found on the high end of the glycemic index scale.I of Oranges. According to the database, an orange has a glycemic index rating of 40. This puts it into the slow-release or low-GI category. You should be aware that different varieties of orange have slightly different GIs; however they all still fall within the low-GI group.