Genetic Test of DAO deficiency

This genetic study is necessary to know if there exist a primary DAO deficiency. To know it, the patient’s DNA is obtained from a sample of buccal mucosa and the genetic variants of interest are analyzed using SNPE Multiplex (Single Nucleotide Primer Extension).

The sample can be taken both at home and in centers associated with the International Institute of DAO deficiency.

Only available in Europe.

Test shipping:
Available only within Europe (excluding the Canary Islands, the Azores and Madeira).

Sample collection:
Included in the price only within the Iberian Peninsula.

120€

Real feedback from real results

My name is Daiana and I am from Uruguay. I started treatment with Adriana last year, and began taking GoDAO shortly afterward. It has helped me a lot — both in feeling better and in being able to manage daily life, in addition to following a diet, which is essential, and especially in handling situations where there aren’t many choices available.

Even though I am on the other side of the world, I would like to thank and highlight the constant support I have received with orders, timely deliveries, and all the necessary arrangements, so that the product can reach the person who then brings it to my country.
Thank you very much for everything.

12/01/2026 - They are excellent because of their size, making them easy to carry in a pill organiser. In addition to helping with the problems caused by DAO deficiency, they have become essential in his daily life.

01/11/2025 - The frequency of my migraines has decreased significantly. I have been taking GoDAO for a few months now and I am very happy with it.

23/09/2025 - The best supplement I`ve tried to manage and control my DAO deficiency

08/09/2025 - Fantastic for people who have DAO deficiency. It helps counteract histamine.

02/09/2025 - I switched to GoDAO following the suggestion of the DAO Deficiency Institute team, and it turned out to be a great decision. GoDAO is effective, it really works, and it has helped me be able to eat foods without experiencing histamine-related symptoms afterwards. The service was very attentive and the order arrived within 24 hours by courier. The box contains tablets for one month; they are small and easy to carry. In addition, you receive a reminder when it is time to renew your order, so you don’t have to worry about keeping track of it. GoDAO has greatly improved my life.

01/09/2025 - With Go Dao I really don't have to worry about social meals or birthday's parties because it just helps me with all the severe symptons I have had. So grateful to have come across the only doctor in Portugal that has the studies of hystamine intolerance, because for sure it helped me improve the quality of my life.

30/06/2025 - My son has been taking this enzyme since he was one year old (he is now six). Thanks to its small size and effectiveness, we have been able to gradually include many foods, so necessary, in his diet.

28/06/2025 - Highly effective. It’s great to know there is a treatment for DAO enzyme deficiency.

27/06/2025 - I’ve been taking it for a couple of months and it has helped me a lot, especially with itching. I recommend it because food also feels easier to tolerate.

04/09/2025 - It works and I recommend it. Since my nutritionist recommended it to me, it’s the only one I take. I would also highlight that its small size makes it easier to take. As for the delivery, everything was very good.