Reviews and Information for Rutin
Quercetin & Rutin Supplements
Quercetin has been touted for many uses including allergy, viral infection, and more. But what is the evidence and which quercetin supplements are best? ConsumerLab reviewed the research and purchased and tested the quality of popular quercetin and rutin supplements, coming up with some big surprises.
Quercetin & Rutin Supplements Review
Filters
View All
Search term may appear only in full report available to members. Join now for full access.
News Release
March 30, 2023
ConsumerLab Tests Show Not All Quercetin and Rutin Supplements Contain What They Claim
White Plains, New York, March 30, 2023 — Quercetin is a plant compound found in its natural form, rutin, in foods such as capers, onions, and kale.
Product Review
Multivitamin and Multimineral Supplements Review
32% Failed our Tests. Choose Your Multivitamin Carefully.
Product Review
Ginkgo (Ginkgo Biloba) Supplements Review
Choose the Best Ginkgo Biloba Supplement. Finding Real Ginkgo Isn't Easy — 60% Fail ConsumerLab's Tests of Quality.
Product Review
Vitamin C Supplements Review
Find the Best Vitamin C Supplements
CL Answer
What are the health benefits of luteolin, and is it safe?
Find out if luteolin, a compound found in many fruits and vegetables, is beneficial for cancer, heart health, skin aging, age-related cognitive decline, and other conditions, and learn if it's safe.
Product Review
Elderberry Supplements Review
Find the Best Elderberry Supplement. Tests and Reviews of Popular Elderberry Supplements & CL's Top Picks.
Product Review
Nattokinase Supplements Review
Only 5 of 8 Nattokinase Supplements Pass Tests.
Clinical Update
11/23/2023
Headache, Alcohol, and Quercetin
Quercetin may put one at risk for headache and facial flushing when drinking alcohol, according to recent research. Quercetin is also known to interact with many prescription drugs. See the details in the Concerns and Cautions section of our Quercetin and Rutin Supplements Review.
Clinical Update
6/01/2022
Quercetin From Food or Supplements?
Is it more cost effective to get quercetin from food (as rutin) than supplements? See our answer in the Quercetin Review.
CL Answer
Does Rooibos Tea Have Health Benefits and Is It Safe?
Learn about the health benefits of rooibos tea, including red and green, unfermented rooibos tea, how is differs from black and green tea, safety, and potential drug interactions with rooibos tea.
CL Answer
Do any supplements help with COVID-19? Do supplements like vitamin D, zinc, vitamin C, or herbals work?
Find out if natural remedies & supplements for coronavirus such as zinc, vitamin C, garlic, or elderberry help to prevent or treat COVID-19.
Recalls & Warnings
March 30, 2026
Vital Nutrients Aller-C Recalled
On March 27, 2026, Blueroot Health recalled two lots of Vital Nutrients Aller-C dietary supplements due to undeclared allergens, including egg, hazelnut, and soy.
CL Answer
Do any supplements help for varicose veins or chronic venous insufficiency?
Find out which supplements help for varicose veins and chronic venous insufficiency, including citrus bioflavonoids and grape seed extract.
News Release
January 29, 2014
You May Be Getting More Vitamin C Than You Think from Some Supplements, Cautions ConsumerLab.com -- 27% of Vitamin C Supplements Don't Meet Label Claims in Recent Tests --
White Plains, New York, January 29, 2014 — It's cold and flu season, which means many people are reaching for vitamin C, as it may modestly reduce cold symptoms (although it won't prevent a cold).
News Release
March 12, 2012
Review of vitamin C supplements by ConsumerLab.com finds many of high quality but a wide range in prices
White Plains, New York — March 8, 2012 — Vitamin C may boost the immune system and is critical for maintaining healthy connective tissue, but do you need to take a supplement and, if so, how do you find one that is right for you and at the best price? ConsumerLab.
Recalls & Warnings
December 05, 2014
Maker of Ginseng, Zinc, Calcium and More Warned for Manufacturing Violations
On November 20, 2014, the FDA issued a warning letter to Long Island Pharmaceuticals, LLC, following a facility inspection which found the company's products to be adulterated because they were prepared, packed, or held under conditions that violate Current Good Manufacturing Practices for dietary ...
