The kiweno histamine test tests the degradability of histamine by the enzyme diamine oxidase (DAO).
The enzyme diamine oxidase (DAO) breaks down histamine in the body. However, if the organism does not have enough of the enzyme at its disposal, histamine can only be broken down insufficiently and an excess of histamine can develop, which often leads to unpleasant symptoms.
A further test procedure is the stool sample for histamine, which can be carried out by a trusted doctor. This can be used to determine how much histamine is actually present in the bowel. In case of increased values, histamine-related complaints may occur despite an additional histamine degradation by the DAO.