Accoding to the Metamucil website one dose of metamucil .. whether it's sugar-free or with sugar ... contains 3.4g ground psyllium husk powder. The remainder of the carbs come from the maltodextrin filler and from sugar if you have the "regular" type. A one-teaspoon dose of sugar-free has 5g carbs ... 3.4g from the fiber and 1.6g from the maltodextrin filler.

Doreen