Quercetin Plus Vitamin C

by Good 'N Natural · capsule · 50 capsules

  • Off the market since May 2016 (NIH)
  • UPC 0 74312 48049 2
  • DSLD label 58515
  • Serving 2 capsules
  • 25 servings

Quercetin Plus Vitamin C by Good 'N Natural lists 2 ingredients, 2 with an amount per serving of 2 capsules, such as 1,400 mg of vitamin C and 500 mg of quercetin. Its current label entered the NIH Dietary Supplement Label Database on April 22, 2016.

What is in Quercetin Plus Vitamin C?

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 Plus Vitamin C: Supplement Facts rows against the market (DSLD label 58515, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic AcidVitamin C (Alt. Name: Ascorbic Acid) Note: 1.4 g1,400 mg2,333%Vitamin C in Quercetin Plus Vitamin C against 18,583 products1,400 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,400 mg

Higher than 99% of 18,583 products listing vitamin C (median 100 mg).

Quercetinas Dimorphandra mollis500 mgQuercetin in Quercetin Plus Vitamin C against 1,548 products500 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.500 mg

Higher than 84% of 1,548 products listing quercetin (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 58515 (entered April 22, 2016), 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 1,400 mg of vitamin C is higher than 99% of the 18,583 vitamin C products that print an amount; 248 list more.

The NIH database records one serving 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?

6 products list 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
Directions: For adults, take two (2) capsules daily, preferably with a meal.
Warnings
WARNING: If you are pregnant, nursing, taking any medications or have any medical condition, consult your doctor before use.
Discontinue use and consult your doctor if any adverse reactions occur.
Keep out of reach of children.
Do not use if seal under cap is broken or missing.
Allergens and what it does not contain
No Gluten, No Yeast, No Wheat, No Milk or Milk Derivatives, No Lactose, No Soy, No Egg, No Corn, No Grapefruit, No Fish, No Sweetener, No Sugar, No Starch, No Preservatives, No Artificial Flavor, No Sodium.
Storage
Store at room temperature.

Source: label statements in DSLD label 58515.

What else is on the label?

Other ingredients: Gelatin, Contains Less Than 2% of.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GUARANTEED QUALITY LABORATORY TESTED.

How many labels does Quercetin Plus Vitamin C have?

2 labels are on file under this name since July 25, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 58515 (current) Entered April 22, 2016 · off the market May 10, 2016 · 50 capsules · UPC 0 74312 48049 2
  2. Label 10836 Entered July 25, 2012 · off the market February 5, 2016 · 50 capsules · UPC 0 74312 48049 2

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

Who makes it?

The label names Good 'N Natural Manufacturing Corp. (manufacturer), Ronkonkoma, NY. All Good 'N Natural products.

Where next?