Hi Pip, welcome to the forum 🙂 Have you been diagnosed long? There's probably quite a variety of rice cakes available, containing different amounts of carbohydrate, so it's best to check on the packet. All carbs will raise your blood sugar levels, so they may not be ideal to have as a snack - a lot will depend on how well your body tolerates them, and you can find this out by testing before you eat them and then again an hour afterwards. If there is a big rise in your blood sugar levels then they probably aren't a good idea and it would be worth looking for an alternative. 🙂