HistaHarmony | Delayed Release DAO Diamine Oxidase Histamine Support Enzyme | 30,000 HDU | 60 Servings

This is a great daily supplement for the stomach. Price is not bad, sleeping better than I expected.No taste and they are working great.

It works!!!this is the best dao supplement out there, good quality

Worked great!

I can’t do plant-based DAO and this porcine-derived product is the best price per serving that I have found from a reputable company. I’ve noticed that the delayed-release tablet does last a bit longer than DAO in capsule form. I’ll continue to buy as long as they don’t keep raising the price.Edit 5/23/25: took off a star because the price has increased 3 times in a couple months.

I got these because of the better price than what I was currently taking. After taking 1-2 pills a day, my symptoms of Histamine Intolerance returned. The symptoms subsided as soon as I returned to the previous supplements.

It has taken me years to figure out that I have a histamine intolerance and these are the only enzymes that really help me. I love that they are so small and I usually only need to take 2 a day with an extra before a high histamine meal. A lot of other supplements require 6 capsules daily. Highly recommend!

Who would image that healthy foods like avocado, spinach, strawberries, kombucha, canned fish, etc. could have high levels of histamine in them? Certainly not me, until I read about histamine intolerance. The levels of histamine in these foods don't bother most people, but for people whose digestive system has been primed to react to histamine by chronic SIBO, MACS, or other digestive disorder, high histamine foods can cause a lot of bloating, discomfort, flushing, etc. Wait, what? Even some Lactobacilli produce histamine? No wonder I can't take probiotics or drink kombucha anymore!I'd recommend trying HistaHarmony to anyone who gets headaches from red wine, or feels bloated and ill after eating processed meat, cheese, avocado, tomatoes, spinach, or kimchi.Diamine oxidase (DAO) doesn't block histamine receptors the way antihistamines do (that's why antihistamines have so many side effects). Instead, DAO stays in your digestive tract, breaking down the histamine itself. A few years ago, there was only one company (Umbrellux) selling DAO. Nice that we have choices now! For me, HistaHarmony works as well as Umbrellux DAO, NaturDAO, and Histamine Digest, but at a lower price and without fillers. Don't be put off by the tiny pill vs. price - this isn't a case where size matters.Before DAO, I had gotten to the point that I was reacting to all foods, either nauseous, or crampy, or like my guts were going to explode. Two HistaHarmony before every meal (for me that's super fresh meats and veggies, low FODMAP, low histamine, no dairy, no grains, no yeast) lets me be OK after eating. Six HistaHarmony and I can have small amounts of say, red wine or sushi. This both a great relief and has let me feel like less of a food weirdo at social events. If you have food issues, give the Healthy Gut Company products a try. They are all good quality and backed by research.

HistaHarmony has really helped me!!