PlainVitamins

Quercetin Zinc

by Mt. Angel Vitamins · capsule · 300 vegetable capsules

  • On the market (NIH)
  • UPC 7 68305 01028 4
  • DSLD label 258359
  • Serving 2 capsules
  • 150 servings

Quercetin Zinc by Mt. Angel Vitamins lists 6 ingredients, 6 with an amount per serving of 2 capsules, such as 120 mg of vitamin C, 25 mcg (1,000 IU) of vitamin D3, 7.5 mg of zinc and 530 mg of quercetin. Its current label entered the NIH Dietary Supplement Label Database on January 22, 2022.

What is in Quercetin Zinc?

Each row as the label prints it, per serving of 2 capsules. 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).

Quercetin Zinc: Supplement Facts rows against the market (DSLD label 258359, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin C120 mg133%Vitamin C in Quercetin Zinc against 18,583 products120 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg120 mg

Higher than 51% of 18,583 products listing vitamin C (median 100 mg). Per day at the most servings: 240 mg.

Vitamin D3as Cholecalciferol25 mcg (1,000 IU)125%Vitamin D in Quercetin Zinc against 14,175 products25 mcg per serving; the middle half of products list 10 mcg to 25 mcg, the median 15 mcg.DV 20 mcgUL 100 mcg25 mcg

Higher than 59% of 14,175 products listing vitamin D (median 15 mcg). Per day at the most servings: 50 mcg.

Zincas Zinc Ascorbate7.5 mg68%Zinc in Quercetin Zinc against 13,186 products7.5 mg per serving; the middle half of products list 5 mg to 15 mg, the median 11 mg.DV 11 mgUL 40 mg7.5 mg

63% of 13,186 products listing zinc give more (median 11 mg). Per day at the most servings: 15 mg.

Quercetin530 mgQuercetin in Quercetin Zinc against 1,548 products530 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.530 mg

Higher than 93% of 1,548 products listing quercetin (median 100 mg). Per day at the most servings: 1,060 mg.

Bromelainas Pineapple50 mgBromelain in Quercetin Zinc against 1,337 products50 mg per serving; the middle half of products list 25 mg to 200 mg, the median 50 mg.50 mg

50% of 1,337 products listing bromelain give more (median 50 mg). Per day at the most servings: 100 mg.

Stinging Nettle50 mgStinging Nettle in Quercetin Zinc against 710 products50 mg per serving; the middle half of products list 50 mg to 300 mg, the median 120 mg.50 mg

69% of 710 products listing stinging nettle give more (median 120 mg). Per day at the most servings: 100 mg.

Source: NIH ODS Dietary Supplement Label Database, label 258359 (entered January 22, 2022), 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?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • Its 530 mg of quercetin is higher than 93% of the 1,548 quercetin products that print an amount; 109 list more.

The NIH database records 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?

The products whose ingredient lists overlap most with Quercetin Zinc's, rare ingredients counting for more.

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
Directions for use: Take two capsules twice daily with a meal, or as directed by your health care provider.
Warnings
Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Allergens and what it does not contain
No soy, salt, yeast, gluten, milk & egg products, sugar, starch, or preservatives.

Source: label statements in DSLD label 258359.

What else is on the label?

Other ingredients: Cellulose, Calcium Phosphate, Magnesium Stearate, Silicon Dioxide.

How many labels does Quercetin Zinc have?

One label is on file, entered on January 22, 2022.

  1. Label 258359 (current) Entered January 22, 2022 · on the market · 300 vegetable capsules · UPC 7 68305 01028 4

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

Who makes it?

The label names Highland Laboratories (manufacturer), Mt Angel, Oregon. All Mt. Angel Vitamins products.

Where next?