Quercetin Strength
by MegaFood · tablet or pill · 60 tablets
- On the market (NIH)
- UPC 0 51494 10014 1
- DSLD label 63347
- Serving 1 tablet
- 60 servings
Quercetin Strength by MegaFood lists 8 ingredients, 5 with an amount per serving of 1 tablet, such as 30 mg of vitamin C, 500 mg of quercetin, 250 mg of eyebright leaf extract and 200 mg of nettle leaf extract; 3 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on August 24, 2016.
What is in Quercetin Strength?
Each row as the label prints it, per serving of 1 tablet. 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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Vitamin C | 30 mg | 50% | 83% of 18,583 products listing vitamin C give more (median 100 mg). |
| OrangeOrange Note: total weight FoodState Nutrient to deliver daily value | 120 mg | Higher than 55% of 117 products listing orange (unspecified) (median 100 mg). | |
| Quercetinas Fava BeanQuercetin (Form: from 95% Fava Bean) | 500 mg | Higher than 84% of 1,548 products listing quercetin (median 100 mg). | |
| Eyebright leaf extract | 250 mg | Higher than 54% of 123 products listing eyebright (median 200 mg). | |
| Nettle leaf extract | 200 mg | Higher than 61% of 710 products listing stinging nettle (median 120 mg). | |
| FoodState Farm Fresh Fruit Blend | 100 mg | ||
| organic whole Orange | in the blend, no amount given | ||
| organic Blueberry | in the blend, no amount given | ||
| organic Cranberry | in the blend, no amount given |
Source: NIH ODS Dietary Supplement Label Database, label 63347 (entered August 24, 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?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 3 ingredients sit inside a blend, so their amounts cannot be compared.
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?
The products whose ingredient lists overlap most with Quercetin Strength's, rare ingredients counting for more.
- AllergiClear-SNative Remedies 3 shared, 44% alike
- C DefenseMegaFood · off the market 4 shared, 40% alike
- Daily C-ProtectMegaFood 4 shared, 38% alike
- Daily C-Protect Nutrient Booster PowderMegaFood 4 shared, 38% alike
- C Defense Tangy CitrusMegaFood 4 shared, 38% alike
- Nasal SupportTerraVita 2 shared, 36% alike
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: 1 tablet daily, 20-30 minutes before a meal.
- Warnings
- Note: Check with your pharmacist, physician or health care provider before taking Quercetin with calcium channel blocking drugs.
- Allergens and what it does not contain
- NSF Certified Gluten-free
- Tested free pesticides & herbicides
- Soy free
- Dairy free
- Non GMO
Source: label statements in DSLD label 63347.
What else is on the label?
Other ingredients: Cellulose, Plant, Guar Gum, Vegetable Lubricant, Silica.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): V Certified vegan vegan.org; Farm fresh; OK. Listed with: Certified gluten-free (GFCO), Certified Vegan (Vegan Action), NSF certified (contents or GMP) (a seal is the label's claim; the certifier's own list confirms it).
How many labels does Quercetin Strength have?
2 labels are on file under this name since August 24, 2016: other sizes, label designs and reformulations. The current one leads this page.
- Label 63347 (current) Entered August 24, 2016 · on the market · 60 tablets · UPC 0 51494 10014 1
- Label 63342 Entered August 24, 2016 · on the market · 30 tablets · UPC 0 51494 10013 4
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names MegaFood (manufacturer), Derry, NH. All MegaFood products.