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Verified by IngredientMD/NOW Foods/NOW Quercetin with Bromelain
VERIFIED BYingredientMD

NOW Quercetin with Bromelain.

Strong evidence, strong doseNOW Foods, verified Oct 2026Formula verified. Independently reviewed.Independent review. Not commissioned by NOW Foods.

Quercetin is the lead active here, studied most for a healthy inflammatory response. 16 human studies on Quercetin back this formula, each one cited. Each serving carries 800 mg of Quercetin, inside the range the published research used. Who it fits: for everyone, adults.

Clinically dosedFull label disclosure
2Active ingredients30Human studies800 mgQuercetin
NOW Quercetin with BromelainVerified by IngredientMD
NOW FoodsIngredientMD
The verdict
Strong evidence, strong dose
For everyone, adults.
How we verify

The brand submits the formula. We read the supplement facts panel and weigh dose, form and synergy against the clinical evidence. Labs test. IngredientMD verifies. The fee pays for review time, never for the outcome.

The formula
Quercetin: A healthy inflammatory responseKey driver
Bromelain: Recovery between sessionsWell studied

How we read this product

Source: Supplement facts
Supplement Facts panel for NOW Quercetin with Bromelain
  1. 01
    We read the label.

    The panel on the left is the one we evaluated, line by line.

  2. 02
    Every active, separately.

    All 2 actives checked against the clinical evidence: dose, form, and what the research actually shows.

  3. 03
    Then the formula as a whole.

    Doses, ratios, and how the ingredients work together. That assessment is the verdict above: "Strong evidence, strong dose".

  4. 04
    Earned, not bought.

    The verdict is public and identical whether or not a brand pays. A formula that does not clear the bar gets nothing.

Read by the engine against 2.1 million data points from clinical trials, PubMed and more than a hundred vetted sources. No individual reviewer is named or implied.

The receipts

30
Human studies
800 mg
Quercetin
165 mg
Bromelain
800 mg per serving clears the studied 250 mg minimum
Quercetin, Edwards 2007 + Javadi 2017 allergy study

Cross-checked against 579 documented interactions for these actives.

Read the evidenceQuercetin, the evidence →Bromelain, the evidence →

Inside the formula

Quercetin
16 studies
A healthy inflammatory response
Studied 250 mg to 1.5 g a day
Key driver
Bromelain
14 studies
Recovery between sessions
Well studied
In context

The gap this formula speaks to.

Public health figures the engine matched to this formula's ingredients. Reported by their source, cited and dated, never written by the brand.

The people it speaks toFieldwork January 2023 to May 2024

56% of US adults

said they exercise or play sports at least once weekly by May 2024, up from 45% in January 2023, in Morning Consult survey tracking.

Morning Consult, 2024
This formulaNHANES 2017-2018, published 2021

57.6%

During 2017 to 2018, 57.6% of US adults aged 20 and over reported using a dietary supplement in the past 30 days.

CDC National Center for Health Statistics
The people it speaks toFieldwork 2022

13.5% of US adults

aged 18 and over felt very tired or exhausted most days or every day over the past 3 months in 2022, in the National Health Interview Survey, with the share higher among women in every age group.

CDC National Center for Health Statistics, 2023
8 more
Daily use

59 to 66 days

was the median time it took adults to make a new daily health habit automatic across the studies a 2024 review pooled, with individuals ranging from 4 to 335 days.

Systematic review and meta-analysis, 2024
Quercetin

Randomised trial, 2016

In a crossover trial of 22 men with borderline-high uric acid, 500 mg of quercetin daily lowered blood uric acid by about 27 micromol versus placebo.

British Journal of Nutrition
Quercetin

Meta-analysis, 2016

Pooling seven trials in 587 people, quercetin lowered systolic blood pressure by about 3 mmHg and diastolic by about 2.6 mmHg, with a bigger effect at 500 mg daily or more.

Journal of the American Heart Association
Quercetin

Meta-analysis, 2020

Across 17 trials in 896 adults, quercetin lowered the top blood pressure number by about 3.1 mmHg and the bottom number by about 2.9 mmHg, with no significant change in lipids or glucose.

Nutr Rev
Quercetin

Meta-analysis, 2023

An umbrella review of five meta-analyses found quercetin lowered systolic blood pressure by about 1.9 mmHg and lowered insulin, with no detectable effect on diastolic pressure, lipids, fasting glucose, inflammation markers or body measurements.

Phytother Res
Quercetin

Meta-analysis, 2011

Across 11 trials in 254 people, quercetin produced a statistically significant increase in endurance exercise capacity and VO2max that the authors rate as trivial to small, about 2 percent over placebo.

Medicine and Science in Sports and Exercise
Quercetin

Meta-analysis, 2022

Pooled randomised trials of quercetin supplementation and reported reductions in systolic and diastolic blood pressure readings, most consistently in participants whose starting pressure was elevated.

Current Problems in Cardiology

Population figures from public health data. Context for the category, not a statement about any individual and not a claim about this product.

What this formula earned

Every one of these is a fact the engine could ground.

Each line below was derived from this formula's own record at the time of verification. Nothing here was written by the brand, and nothing can be added that the evidence does not carry.

  • Studied in people16 human studies on Quercetin back this formula, each one cited.
  • A mechanism that is settledHow Quercetin and Bromelain work is settled pharmacology.
  • Studied together, not just separatelyQuercetin and Bromelain have been studied together, not only separately.
  • Recent work on the recordThe most recent study on this record was published in 2019.
  • Serving amount inside the studied rangeEach serving carries 800 mg of Quercetin, inside the range the published research used.
  • A stated daily maintenance amountQuercetin is here at a daily maintenance amount, which is what a daily supplement is for.
  • Why this formatIt is a capsule, so the amount per serving is fixed and travels without measuring.
  • The exact form, describedThe label names its forms exactly: Quercetin dihydrate, Bromelain (from pineapple stem), standardised in GDU. The record says what each one is and what it suits.
  • Full label disclosureEvery ingredient on this label carries its own declared amount.
  • Where it comes from and how it is madeQuercetin is made by botanical.
  • Positions this formula already qualifies forThis formula already qualifies for positions beyond the one it is sold into, on the evidence it carries.
  • A position nobody is holding yetSome of those positions are ones almost nobody is selling to yet.
General timing

How each ingredient usually behaves over time.

Two ingredients, from each one's own page.

How each ingredient usually behaves over time, from its own page on IngredientMD. General timing for the ingredient, not a measurement of this product.

Chemical form

The same ingredient, carried differently.

What each form is, and where it fits in a formula. Measured findings carry the study that reported them.

  • Quercetin dihydrate

    Quercetin aglycone, the free flavonol with no sugar attached, crystallised with two molecules of water held in the lattice. The raw material is usually extracted from Sophora japonica flower buds or Dimorphandra mollis (fava d'anta) pods.

    Fits
    The workhorse raw material behind most quercetin labels: a stable crystalline yellow powder that standardises cleanly to a stated flavonol weight and blends readily into capsules, tablets and powder blends.
    Trade-off
    The plain aglycone is poorly water-soluble and dissolves slowly in gastrointestinal fluid, so an unformulated dihydrate powder sits at the low end of the solubility range for this molecule.

Descriptions of the form itself, read from the cited studies. Not a comparison between products and not a statement about any individual.

Format

Capsule

It is a capsule, so the amount per serving is fixed and travels without measuring.

Best forMost standard doses, and anywhere a short, clean label is the point.

Questions shoppers ask

Is NOW Quercetin with Bromelain independently verified?
Yes. IngredientMD reviewed this formula independently and verified it in Oct 2026. The verdict is earned, not bought: brands can't edit or purchase it.
What's in NOW Quercetin with Bromelain?
NOW Quercetin with Bromelain is built on Quercetin, Bromelain. Each ingredient links to its own evidence page on IngredientMD.
Were ingredient interactions checked?
Yes. The combination was screened against 579 documented interactions for these actives in IngredientMD's interaction database.
Who is IngredientMD?
IngredientMD is an independent supplement-science platform. We analyze ingredients and formulas against clinical research, and we verify products only when they clear our bar. Labs run the tests. We review the results.
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These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This record is not medical advice. Always consult your healthcare provider before starting any supplement regimen.

Independent review by IngredientMD, not commissioned by NOW FoodsWork at NOW Foods? This verification is yours to claim →