Is Dextrose Gluten-Free? A B2B Sourcing Guide for Food & Beverage Manufacturers Last updated: May 4, 2026 Quick answer: Yes — dextrose is gluten-free when it is derived from gluten-free starches (most commonly corn, and sometimes rice, tapioca, or potato). Dextrose derived from wheat starch is also considered gluten-free under 21 CFR 101.91 provided the…