I haven't really used any protein powder, I am trying mostly to eat whole foods (emphasis on trying). Protein Power usually gets you around 40 carbs a day, but a lot of days I am at 20. I can even get around 20-30 adding some fruit (cantaloupe and strawberries are pretty low carb). I just usually keep my fruit servings small, i.e. 3 strawberries, a few cubes of cantaloupe, etc. Really the difference in protein power and atkins is that PP doesn't care where you get your carbs from, as long as you stay under a certain amount. The other main difference is a focus on getting at least your minimum protein requirement each day.