Ohgave! brand agave nectar “takes agave to a whole new (lower) level,” says the company. Tested by the Glycemic Index Laboratory to have a low GI of 17, the Ohgave! Light and Amber blue agave varieties combine “culinary flair, superior taste and great health benefits.” New to the line is Ohgave! RAW agave nectar, which is said to have a great taste.