I was about to start Slim Fast shakes when I went to the doctor last week and was told to start watching carbs and sugar. Now I need low-carb/high-protein shakes instead. Are there any out there pre-made or will I have to make them homemade? If I need to make them myself, what are the best protein powders out there with less than 30 grams of carbs per serving?

For my protein drinks, I use whey. Sometimes I will add milk to it, sometimes I will add water. They aren't the best shakes in the world, but they are packed with protein.