Diamine oxidase (DAO) - activity (test for histamine intolerance)

Diaminoxidase - DAO study

Diamin oxidase (DAO) is an enzyme that breaks down histamine.

The indication for DAO testing is:

• suspicion of histamine intolerance,
• suspect of DAO deficiency in intestinal mucositis,
• suspected DAO deficiency due to substances that decrease its activity,