DAO Histamine Digester with Bioflavonoids

by NutriCology · capsule · 60 vegicaps

  • On the market (NIH)
  • UPC 7 13947 56880 8
  • DSLD label 199687
  • Serving 1 capsule
  • 60 servings

DAO Histamine Digester with Bioflavonoids by NutriCology lists 3 ingredients, 3 with an amount per serving of 1 capsule, such as 41 mg of diamine oxidase, 50 mg of rutin and 50 mg of quercetin. Its current label entered the NIH Dietary Supplement Label Database on April 25, 2019.

What is in DAO Histamine Digester with Bioflavonoids?

Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

DAO Histamine Digester with Bioflavonoids: Supplement Facts rows against the market (DSLD label 199687, January 2026 release)
IngredientAmount% DVAmong products listing it
Diamine Oxidaseas Porcine KidneyDiamine Oxidase (Form: from Porcine Kidney) (Alt. Name: DAOsin) Note: 5000 HDU (Histamine Degrading Units)41 mg
Rutin50 mgRutin in DAO Histamine Digester with Bioflavonoids against 1,232 products50 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.50 mg

Higher than 69% of 1,232 products listing rutin (median 25 mg). Per day at the most servings: 100 mg.

Quercetin50 mgQuercetin in DAO Histamine Digester with Bioflavonoids against 1,548 products50 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.50 mg

56% of 1,548 products listing quercetin give more (median 100 mg). Per day at the most servings: 100 mg.

Source: NIH ODS Dietary Supplement Label Database, label 199687 (entered April 25, 2019), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

The NIH database records 1 to 2 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

1 product lists the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Use As a dietary supplement, 1 capsule one or two times daily with histamine-rich foods, or as directed by a healthcare professional.
Warnings
Caution: If pregnant or nursing, consult your healthcare practitioner before use.
Keep out of reach of children.
Storage
Store in a cool, dry place, tightly capped.

Source: label statements in DSLD label 199687.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Sucrose, Rice Starch, Shellac, Hydroxypropylcellulose, Polyvinylpolypyrrolidone, Talc, Corn Starch, Carboxymethylcellulose, Glycerol, L-Leucine.

How many labels does DAO Histamine Digester with Bioflavonoids have?

One label is on file, entered on April 25, 2019.

  1. Label 199687 (current) Entered April 25, 2019 · on the market · 60 vegicaps · UPC 7 13947 56880 8

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names NutriCology (distributor), Alameda, CA. All NutriCology products.

Where next?