cream of tartar
A natural byproduct of winemaking used as a leavening agent.baking soda
Generally considered safe for most individuals with histamine intolerance.
Suitable
Most people with histamine intolerance tolerate this food well.
Baking soda (sodium bicarbonate) is not a source of histamine or other biogenic amines. It is well-tolerated in the context of HIT and is commonly used as a leavening agent or to neutralize acidity in food.
Safer alternatives
Suitable
Ascorbic acid (vit. C synthetic)
cornstarch
Low in histamine, usually well tolerated.