Maltodextrin is a powdery food ingredient made by breaking down plant starches. It is usually very easy to digest so it is often used as a binder or a filler in foods, medications and dietary supplements. Although it does not have a sweet taste, maltodextrin is a type of sugar, so it has the same number of calories as sugar; each gram of maltodextrin has four calories.
Most maltodextrin is produced from corn, however, it is also made from potato starch or rice.
Source: US Food and Drug Administration. "Food for Human Consumption." Updated April 1, 2006.

