I recently purchased from the Atkin's site their Soft Serve Ice Cream packets to make your own low carb softserve ice cream.

I was disappointed that the packet contained a couple of sugars: low glycemic monosaccaride and dextrose. Plus it contained Lo Han Fruit Concentrate which sounded a little suspect to me. Still its label touted less than 1 carb per 1/2 cup serving.

I found that Lo Han Fruit Concentrate is really low carb (thank goodness!) but itself has 1 gram per gram weight, so I think that the softserve is probably more like 3 grams carb per 1/2 cup serving, but that it still good since the softserve tastes fabulous!

Information on purchasing this sweetener is here:

1 packet=1/5 tsp=0.98 g carb

http://www.iherb.com/slimsweet.html

"SlimSweet is the incredible new zero-calorie sweetener made from an all natural fruit source that tastes as delicious as sugar, but does not promote fat storage or the insulin, blood sugar and cholesterol surges caused by other sweeteners (even natural ones)!"