XYMOGEN HistDAO - DAO Enzyme Supplement to Supports Healthy Degradation of Food-Derived Histamine - Diamine Oxidase for Digestive Health 20,000 HDU Per Serving (60 Tablets)

Very effective histamine blocker

Works great 👍

I ordered another (cheaper) brand that not only didn’t work but made me extremely nauseous. I like the size of these tablets (easy to swallow) and the amount provided (60). These not only prevented my usual reactions to histamine-rich foods but allowed me to be a little less restricted with my diet. I have found my go-to brand.

Great SellerArrived just as described, on time, great conditionwill shop with this seller again

Works as described. Arrived on time. 3 stars as would prefer if the lightweight paper box were sealed in an outer package or envelope - weird to receive medication in the mail with no layer of protection. Too easy to tamper with. Box arrived smashed. Luckily the pills were ok.

This is absolutely the gold standard in DAO supplements available on Amazon. I have tried several brands. They’re all kind of expensive, but nothing works like this one. I take it first thing on waking and wait 20 to 30 minutes for best effect. Love how small the pills are. Apparently the blister pack makes a difference? I don’t know why these work so much better. But this is the one you wanna get.

It helps.

When I have this enzyme before a meal I notice that my stomach is noticeably flatter as I am digesting the food. Also, I'm digesting my food better as noted by the output. I have had intestinal surgery and I have no colon so my guts have impaired enzyme production. I have been trying all kinds of enzymes for different foods and this one definitely helps with tomato and pineapple!