Agave nectar has long been touted as the ideal sugar substitute, taking the nation's Whole Foods (WFM) grocery stores by storm. It is frequently advertised as all-natural, low-glycemic, and “diabetic-friendly.” The reason it is so low on the glycemic index, however, is because it is 90% fructose. To give you some perspective, table sugar is an equal balance of fructose and glucose. High fructose corn syrup is 55/45. That means agave nectar has nearly double the fructose of the diet industry’s public enemy number one. The fact of the matter is that fructose is not your friend -- it has been known to wreak metabolic havoc, upset insulin levels, and raise triglycerides. Agave syrup is a champion of good marketing, not of good health.