Evidence supporting the use of: Quercetin
For the health condition: Congestion (bronchial)

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Quercetin is a plant-derived flavonoid that has been studied for its potential anti-inflammatory, antioxidant, and antihistamine effects. While it is not a standard treatment for bronchial congestion, there is some scientific evidence suggesting quercetin may help reduce symptoms related to bronchial inflammation and congestion. Quercetin’s anti-inflammatory properties have been shown in cell and animal studies to inhibit the production of pro-inflammatory cytokines and reduce oxidative stress in respiratory tissues. Additionally, quercetin acts as a mast cell stabilizer, which can decrease histamine release and potentially alleviate symptoms associated with allergic reactions and bronchial congestion.

A small number of human studies have explored quercetin's effects on respiratory health. For example, some clinical trials suggest quercetin supplementation may reduce upper respiratory tract infection symptoms and duration in physically active individuals. However, direct evidence supporting its use specifically for bronchial congestion (such as in bronchitis or asthma) remains limited, with most data derived from preclinical research or studies focusing on broader respiratory symptoms. It is worth noting that traditional use of quercetin for this specific indication is not well-documented; its use is primarily supported by modern scientific investigation into its pharmacological actions.

Overall, while there is a scientific rationale for quercetin’s potential to support respiratory health and possibly alleviate bronchial congestion, the clinical evidence is not robust. More well-designed human studies are needed to confirm its efficacy for this specific indication.

More about quercetin
More about Congestion (bronchial)

Other ingredients used for Congestion (bronchial)

allspice
aloe vera
alpha-pinene
waterhyssop
basil
benegut perilla (proprietary)
beta-pinene
black cumin
black currant
black pepper
Indian frankincense
bupleurum falcatum
bасора
caffeine
capsaicinoids
chamomile
chen pi
Chinese salvia root
clove
Coptis chinensis
cowage seed
turmeric
echinacea purpurea
elderberry
ethanol
forsythia
garlic bulb
ginger
grape
onion
green tea
horseradish
Indian tinospora
licorice root
lovage
mustard seed
n-acetyl-cysteine (NAC)
spruce
ophiopogon root
oregano
perilla
phellodendron amurense
platycodon root
pomegranate
quercetin
rosemary
scrophularia root
shiitake mushroom
spearmint leaf
sphaeranthus indicus
thyme
vitamin C
yellow root
squawvine
boneset
mullein
hyssop
cardamom
atractylodes
capsicum
mugwort
malabar nut
alpinia galangal
ferula assafoetida
inula racemosa
anise
blackboard tree
lingusticum wallichii
buckthorn
fritillaria
lemongrass
yerba santa
elecampane
coltsfoot
chrysanthemum
juniper berries
siler root
sweet flag
oriental arborvitae
trichosanthes
zanthoxylum
eucalyptus
menthol oil
aster root
abies spectabilis
horehound
Sichuan pepper
cayenne pepper
soursop
Alcohol
Agastache
Anamarrhena
Alpha-terpineol
Ardisia
Angelica
Allicin
Asarum heterotropoides
Aconite
Asafoetida
Andrographolide
Adrenergic amines
Asteracea
Allyl Sulfide
Adenophora
Allium tuberosum
Amor seco
Arisaema
Asarum sieboldii
Alantolactone
Atractylone
Black Seed
Baikal Skullcap
Baphicacanthus cusia
Bidens pilosa
Black spruce
Bicarbonate
Blepharis
Balsam
Bishop's Weed
Boswellic Acid
Bayleaf
Black galingale
Barleria
Bitter Grass
Bisabolene
Bael
berry
Boswellia
Baccharoides anthelmintica
black salt
Bee products
Bombax
Buddha's Hand
Borage
Bupleurum
Balloon Flower
Belamcanda
Borneol
Camellia sinensis
Chinese Silkvine
Curry leaf
Chinese Mountain Ant
Clerodendrum trichotomum
Citrus
Cineole
Cajuput
Chinese Raisintree
Cowherb
Curcumen
Cistus
Curcuma
Calamus
Cinnamaldehyde
Carthamus
Culvers Root
Chondrus
European Elder
Elder
Galangal
Mustard
Mallow
Sandalwood
Vervain

Products containing quercetin

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Thorne Advanced Nutrients Multivitamin
Pure Encapsulations AI Formula
Pure Encapsulations Aller-Essentials
Pure Encapsulations Aller-Essentials
Designs For Health ArthroSoothe™ Supreme
Pure Encapsulations Athletic Nutrients
Pure Encapsulations Balanced Immune
Designs For Health BioFizz® Immune
Metagenics CardioLux® HDL
Designs For Health C+BioFizz®
Douglas Laboratories Cysto Renew ®
Pure Encapsulations Daily Immune
Integrative Therapeutics Detoxication Factors
Integrative Therapeutics Detoxication Factors
Designs For Health DFH Complete Multi™
Designs For Health DFH Complete Multi™ with Copper
Designs For Health DFH Complete Multi™ with Copper & Iron
Thorne Diabenil
Designs For Health DopaBoost™
Designs For Health Electrolyte Synergy™
Pure Encapsulations Essential-C & Flavonoids
Pure Encapsulations Essential-C & Flavonoids
Designs For Health GI Revive®
Designs For Health GI Revive®
Designs For Health H-S-N Radiance™
Pure Encapsulations Hist Reset
Designs For Health HistaEze™
Metagenics Immune Active
Metagenics Immune Defense Pack
Designs For Health Inflammatone™
Designs For Health Inflammatone™
Designs For Health Inflammatone™
Vitabase Life's Essentials Plus
Metagenics Multigenics®
Metagenics Multigenics Chewable Orange
Metagenics Multigenics Intensive Care
Metagenics Multigenics Intensive Care without Iron
Metagenics Multigenics without Iron
Pure Encapsulations NeuroMood Pure Pack
Pure Encapsulations NeuroPure
Designs For Health OcuForce™
Designs For Health PaleoCleanse Plus™
Designs For Health PaleoCleanse Plus™
Designs For Health PaleoCleanse Plus™ Detox Program
Designs For Health PaleoCleanse Plus™Chocolate Detox Kit
Designs For Health PhytoBiome™
Metagenics PhytoGanix® Tropical Fruit
Designs For Health Plant Protein Cleanse
Designs For Health Plant Protein Cleanse Plus™ 570g
Pure Encapsulations Polyphenol Nutrients
Pure Encapsulations Polyphenol Nutrients
Thorne PolyResveratrol-SR
Designs For Health Primal Multi™
Vitabase Prostate Complex (Formerly Prostate Complete)
Pure Encapsulations PureDefense
Pure Encapsulations PureDefense with NAC
Pure Encapsulations PureDefense with NAC
Pure Encapsulations PureLean® Protein
Pure Encapsulations Quercetin
Pure Encapsulations Quercetin
Metagenics Quercetin 500
Vitabase Quercetin Plus
Designs For Health Quercetin-Ascorbate
Douglas Laboratories Quercetin-Bromelain Complex
Thorne Quercetin Complex Quercenase
Designs For Health Quercetin + Nettles
Thorne Quercetin Phytosome
Pure Encapsulations Quercetin UltraSorb
Thorne ResveraCel
Designs For Health Resveratrol Supreme
Designs For Health Senolytic Synergy
Metagenics Sinuplex®
Designs For Health Stellar C™
Vitabase Super Antioxidant Formula
Pure Encapsulations Th2 Modulator
Designs For Health Ultimate Antiox Full Spectrum
Douglas Laboratories Ultra Preventive
Douglas Laboratories Ultra Preventive
Douglas Laboratories Ultra Preventive ®-EZ Swallow
Douglas Laboratories Ultra Preventive® X
Douglas Laboratories Ultra Protein Green
Metagenics UltraInflamX Plus 360°® Chocolate/Orange
Metagenics UltraInflamX Plus 360° Mango
Metagenics UltraInflamX Plus 360° Mango
Metagenics UltraInflamX Plus 360° Orange
Metagenics UltraInflamX Plus 360° Original Spice
Metagenics UltraInflamX Plus 360° Pineapple/Banana
Metagenics UltraInflamX Plus 360° Pineapple/Banana
Pure Encapsulations Uric Acid Formula
Designs For Health Vessel Forte™
Vitabase Vision Support
Integrative Therapeutics Vitamin C with Quercetin