Waking up feeling groggy is common after a poor night’s sleep, and many people blame it on hay fever in the warmer months.

Usually, an enzyme called diamine oxidase (DAO) breaks down histamine. However, different factors can inhibit the activity or expression of this enzyme. A deficiency of DAO typically occurs due to ...

This is the point where DAO supplements come in handy. DAO, or diamine oxidase, is an enzyme that breaks down histamine in the body. Taking a DAO supplement can help alleviate symptoms of ...

DAO (diamine oxidase) is an enzyme that helps break down histamine in the body, making it a popular supplement for those with histamine intolerance or sensitivity. Our list includes supplements ...

Diamine oxidase (DAO) is the enzyme that breaks down histamine in the body. People with lower levels of DAO have higher histamine levels and, therefore, may be more likely to develop allergies.