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 :Because Agave nectar is sugar. its not a sugar substitute. It may have a better glycemic index than some other sugars, but its fully caloric, and not a substitute that will reduce caloric intake.   

 == the list of sugar substitutes is not complete in the article == 

 theres more sugar substitutes listed in this discussion than on the actual article. can someone complete the list . Most notably its missing truvia and the other newer stevia derrived sweeteners. Id personally like people to become more aware of these stevia based sweeteners so they will gain in popularity and finally end up in most softdrinks and candies and ice cream etc etc etc. Since its from a plant im quite certain in my mind that its by far the safest sweetener of all .  —Preceding unsigned comment added by     
 :Truvia is a brand name product, a combination of nonnutritive sweeteners, i believe. other stevia derived sweeteners are of course covered by the link to stevia. i know you can buy powdered stevia flowers, which is a green powder with a stronger licorice flavor than stevia extract. just like licorice sticks are naturally sweet without sugar, due to the glycorryzine (sic) in them. again, the link we have suffices, i believe. (mercurywoodrose)  "