The short answer is: some are and some aren't. For full nutritional info including sugar content, please take a look at your nutritional label on the package or on the flavour description pages (scroll down). Here's the long answer... Fruit Drops are all-natural, unsweetened flavour essences. Water flavours are sweetened with fructose, sugar and/or stevia leaf extract. Classic flavours are sweetened with sugar, sucralose, acesulfame potassium and/or stevia leaf extract. Diet/Zero flavours are sweetened with combinations of sucralose and/or stevia leaf extract and/or erythritol.