Ascorbic acid (vit. C synthetic)
Malic acid (E296)
Synthetic acid, usually well tolerated.
Suitable
Most people with histamine intolerance tolerate this food well.
Malic acid (E296) is a synthetic substance used as an acidulant. It occurs naturally in apples, but is synthetically produced as an additive. In this case, it has no direct effect on the histamine content of the food and is generally considered to be well tolerated in histamine intolerance.
Safer alternatives
Suitable
Folic acid
L-ascorbic acid (E300)