What is the difference between Maltodextrin and Erythritol?

The difference between maltodextrin and erythritol

is that “maltodextrin” is a type of dextrin commonly used as a food additive and “erythritol” is a tetrahydric sugar alcohol -butane-1,2,3,4-tetraol that occurs in some fruit; it is used as a sugar substitute.

maltodextrin	erythritol
Noun (biochemistry) A type of dextrin commonly used as a food additive wiki:maltodextrin	Noun (organic chemistry) A tetrahydric sugar alcohol (2R,3S)-butane-1,2,3,4-tetraol that occurs in some fruit; it is used as a sugar substitute wiki:erythritol