In an age where fat is no longer the enemy of our diets, a new nemesis to health has arrived in the form of sugar. More specifically, ‘processed’ sugars such as high-fructose corn syrup and cane sugar. As a result, there is a growing trend of using alternative, ‘natural’ sweeteners instead. Agave syrup is one of the more prominent members of this trend – derived from the tequila plant, proponents claim it has a lower calorie count than sugar and a low glycaemic index (GI) value, so it will increase your blood sugar levels slowly.

However these claims, whilst not untrue, are missing key information. The recommended intake of sugar per day is 25g according to the World Health Organisation. By replacing all the sugar in your diet with agave, there would be a difference of only 20 calories per day (about 3 orange segments). Although agave is more concentrated than sugar, 25g barely equals two tablespoons, and given our Western disposition to sweetness, it is unlikely anyone is going to stick to the limit, agave or not. The glycaemic index itself is also not a significantly useful tool. GI values are based on averages and individual blood sugar levels respond to the same food in significantly different ways in individuals.

So, is it worth it? If you like the taste, then yes. But if you are looking to thwart the sugar agenda with some Mexican magic, you are out of luck.