Ascorbic acid (vit. C synthetic)
Gelatin
Caution
May cause symptoms in more sensitive people. Track your own reaction.
Gelatin is a collagen protein from animal sources. Its amino acid composition can stimulate the release of histamine from mast cells. This also applies to gelatin capsules of dietary supplements.
Safer alternatives
Suitable
cornstarch
Low in histamine, usually well tolerated.emulsifier (E 471)