Best way to avoid hidden sugars (these are mainly in savoury foods as you would expect them in sweet foods!) is not to buy processed foods, sauces etc and make your own. Once you are used to a low sugar or natural sugar (ie fruit) diet, savoury sauces and soups etc that you buy all taste horrible because they are so sweet. Best to have a small amount of sweet treats and know you are having them eg a square of choc or something and cut out the rest. Also too much fruit juice is not good for blood sugar levels - not sure about digestion?
Hurdity x