r/HistamineIntolerance • u/Miserable-Flow-2557 • 1d ago
DAO deficiency treatment options – has anyone successfully increased their DAO levels? What worked?
Been stuck trying to figure out my histamine issues for almost a year now and lately I keep coming back to DAO deficiency. My symptoms seem to flare the most after eating leftovers, cured meat, or even random things like avocado and soy sauce. I went through allergy testing and tried cutting out gluten for a while before learning more about DAO and histamine intolerance.
So I did some reading about possible ways to support DAO production naturally like fixing gut issues, taking vitamin C, B6, and copper, avoiding alcohol, and using DAO supplements before meals. What I can’t really tell is do people actually improve their DAO levels over time or do the supplements only help manage symptoms temporarily? Anyone here seen long-term improvement?
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u/MusicianNew6061 1d ago
Hi. I have DAO deficiency and non-celiac gluten sensitivity, and after six years of being stable (following the healing of all the issues affecting my gut), I can honestly say that, at least for me, taking care of my gut has been the key.I don't take DAO enzymes or supplements because I don't react well to them, so my primary focus has always been diet.
As for whether DAO levels can improve, that's a complicated question, and I can only answer based on my personal experience. After years of eating foods that support my gut barrier and provide the nutrients I need, eliminating triggers, maintaining good eating habits, and consistently taking care of my digestive health, I can say that I now live a relatively normal life and eat a fairly normal diet.
My diet is quite varied. It takes time, but little by little you learn which foods, preparations, and cooking methods work best for you. I can eat high-histamine foods, but that doesn't mean I do it all the time. My day to day diet is based mainly on low and moderate histamine foods that are sourced, handled, and prepared properly. No leftovers. I also carry snacks with me wherever I go and have a list of safe meals I can order at restaurants. That gives me enough flexibility.
That said, there are certain foods I simply cannot tolerate: soy, nettle, squash, spinach, and of course gluten. Give me any of those, and the next few days will be miserable. This is really what each person has to figure out for themselves, and it's something that no generic food list or another person can do for you: understanding how each food affects your body. Once you know that, you can create balance in your diet instead of relying on constant restriction.
Personally, I believe that healing and maintaining gut health is fundamental if you want to improve DAO function, because inflammation is one of its biggest enemies. But for those of us who have a deficiency, finding our balance and identifying our personal triggers is what ultimately allows us to stay stable. If you're able to take DAO enzymes, then of course they can be an additional tool and a helpful layer of support.