You are correct to be concerned.
How Is Agave Nectar Made?
The sweetener commonly sold as Agave nectar would be more accurately labelled as Agave syrup.
The truth is... it has
very little in common with the traditional sweetener made by the Mexicans.
The starting process is the same. They take the plant, then cut and press it to extract the sugary circulating fluid.
This fluid is high in sugar, but it also contains healthy compounds like fructans, which are linked to beneficial effects on metabolism and insulin (
2).
However, when processed into a syrup, the manufacturers break the fructans down into fructose by exposing the sugary fluid to heat and/or enzymes (
3,
4).
This process destroys all of the health promoting properties of the Agave plant, but instead produces the concentrated syrup available on store shelves that is falsely claimed to be healthy.
The manufacturing process is similar to how other unhealthy sweeteners are made, such as High Fructose Corn Syrup. So... the sweetener sold as Agave nectar is NOT truly "nectar" - it is a refined, processed sweetener
made from Agave nectar.
BOTTOM LINE: The Agave sweetener sold today is made by treating the sugars with heat and enzymes, which destroys all the beneficial health effects of the Agave plant. The end product is a highly refined, unhealthy syrup.