Question: is trehalose a natural ingredient?
Answer: Trehalose is a naturally occurring glucose found in mushrooms, some seaweed, lobster, shrimp and foods in which baker's or brewer's yeast is used. In the 1990s, it cost around $7,000 to distill 1 kilogram, or 2.2 pounds. Too expensive to use, but then scientists discovered how to extract it from cornstarch.