From what was researched and consultations with private MD, it will take some time for histamine levels to become less intrusive. Discovred that certain medications and unhealthy gut (gluten sensitivity, leaky gut et al) often causes histamine levels to rise. Will have to wait and see if and when this product is helpful. Read more

I don't have a histamine intolerance but I do have issues with histamines not being processed properly. When I get a buildup I have to do whatever I can to reduce more histamines being added to my "bucket" and this DAO supplement was sort of the magic pill that changed everything. I take various antihistamines but all they do is block the receptors. DAO actually keeps the histamines at bay. Most of the DAO supplements aren't enteric coated which is super important so the DAO actually lasts long enough to do its job. That's the main reason I purchased this brand. After just the first dose I could tell a massive difference. The only issue I have is remembering to take it before each meal! Read more

This helps a lot when you have food sensitivities! I have been taking it for a while now, and there is a noticeable difference in my response to some foods. Read more

I do like these! I have noticed as I'm aging histamine intolerance is real. I like to take these during my luteral phase. Read more

Seemed to work, but expensive for the quantity, so went with another product. Read more

Listen. If you have a serious allergic disease like I do, absolutely 100% do not play with this stuff. It may be safe for 99% of people, but people like us can't mess around with this part of our body. I have mast cell activation syndrome, and looked to this for hope. Every single day I fight off anaphylaxis with an array of antihistamines and steroids, and still can only eat meat, blueberries, cantaloupe, grapes, water and black coffee. If I stray from any of that, I have to use epi pens and get iv steroids. I took a single pill of this, and 30 minutes, my hands and face were burning with hives. My skin turned glaring rosy pink, (im Caucasian) and my heart began to pound kind of like when you get given a large dose of iv steroids. I was very dizzy and paniced, but I drove to the hospital and slept it off in the parking lot for 2 hours before feeling safe enough to drive home. After that I was pasty white for a couple hours, which is rare nowadays, and I ate a whole cantaloupe, watermelon, (which normally I'm a little allergic to) a ton of Blueberries, and beef, which the fat can trigger me sometimes, but it didn't. I was shocked! The stuff clearly works, but the way it entered my body was a nightmare! I'll never be taking this brand again, but DAO has a lot of promise if it can be purified into a hypoallergenic compound that can be utilized in a sensitive medical setting. If there is any risk of anaphylaxis for you, I seriously wouldn't take this stuff without literally being monitored in the hospital as it happens. As good as fruit is when you're essentially on a carnivore diet, Its not worth the risk of dying or pushing your disease a direction it never needed to go. Take your meds and vitamins, hit your macros, take care of your body, stand up for yourself before doctors, and say your prayers. Leave this risky business for people who are less sensitive to these things. Read more

I really like this product. I can eat foods that have high histamine levels and not have side effects. I forgot to take it one day and was pleasantly surprised that I didn't get ill. The other DAO ssupplementI was taking wasn't as effective and cost more. Read more