Fructose is a simple sugar (such as glucose and maltose) that occurs naturally in foods. When one molecule of fructose combines with one molecule of glucose, it forms sucrose (a.k.a. table sugar). Years ago, agave syrup was all the rage because it was high in fructose. Fructose is known to have a low glycaemic index, meaning it does not raise blood sugar as much as glucose. Back in the 1960s, fructose was used to treat diabetes because it does not need insulin to be metabolised (1, 2, 3). That’s good, right? Not so fast! There has been plenty of scientific research on how fructose affects metabolic health. Science seems to…