No, there is no sugar in e liquids.nThe sweetness found in recipes comes from diluents and flavors.nVegetable glycerin is an alcohol sugar similar to xylitol or erythritol. Its glycemic index is zero.nPropylene glycol is a diol or dihydric alcohol whose molecule is close to glycerin. Here too, its glycemic index is zero.nFlavors are a collection of volatile compounds, ketones, esters, aldehydes, alcohols, terpenes, lactones and acids.nSucralose (however derived from sugar), a sweetener often used in e liquids, does not fall into the category of carbohydrates.