As a corn allergy advocate, it is my primary goal to protect corn-allergic consumers and patients by clarifying the critical difference between glucose (blood sugar) and dextrose (corn sugar manufactured from cornstarch per Code of Federal Regulation 21CFR184.1857).
Glucose (blood sugar) and corn sugar (dextrose) may be biochemically identical (Molecular Formula: C6H12O6); however, not with regard to their allergenicity; e.g., glucose (blood sugar) cannot provoke an allergic response, whereas dextrose (corn sugar manufactured from cornstarch) can prove fatal to anyone with an IgE-mediated allergy to corn. It is for this reason that intravenous solutions to which corn sugar (dextrose) has been added are contraindicated for administration to corn-allergic patients in the package insert. DextroseIsCornSugar (talk) 03:24, 21 August 2020 (UTC)