Smoothie Ingredient Slideshow

Smoothie Ingredient Slideshow

Flickr/Artizone
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This natural sweetener, extracted from agave plants, has a lower glycemic index than honey or refined sugars. But the maple syrup-like substance may not be as healthy as you think. Most agave products used in commercial food chains are highly refined—a sweet sludge far removed from the plant sap’s natural state. And while the nectar gets a good rep for high fructose content (the natural sugar produced by fruits), high levels of fructose leave the body unable to metabolize sugar efficiently, leading to weight gain.