Its best to buy full fat natural yogurt, Greek is nicest because its not so acidic and then stew up some berries such as blackcurrents or blueberries to mix in. If its not sweet enough and not palatable you can sweeten the stewed fruit with some Erythritol, its the best I have found as Stevia for example leaves a horrible aftertaste. The Erythritol is safe for diabetics, goes straight through you and is recommended from my Peer Educator Tutor for Type II diabetes, and she has done all the research on this low carb diet for her PhD.
I understand there are a lot of trials now going on to demonstrate the benifits of a very low carb diet so hopefully that will start to provide the evidence and encourage clinitians to change their practice. My daughter is dietician and it is interesting to see how she been trained to resist ‘crank’ diets, understandably as some of her patients have really odd eating habits. However with overwealming evidence they will come round. If you think its hard for us to change habits and embrace fats, think how much harder it is for a professional who has to admit they were peddling myths over a lifetime in medicine. There is a really good interview with Dr Tim Noakes about low carb diets and how he has completly change his opinion, worth watching.