J.K.
I personally never had much luck with Slim-fast. The shakes are pretty high carb when you consider the sugar from the shakes plus the milk. I really like the Atkins Advantage shakes if you are looking for a pre-packaged shake. The Chocolate Royale flavor is the best in my opinion, and has 2 g carb, 15 g protein, and 160 calories. I find that they keep my blood sugar stable and give me enough energy to make it to the next meal without wanting to eat everything in sight. Good luck!