Evidence supporting the use of: Green tea
For the health condition: Congestion (lungs)

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Synopsis

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

Green tea (Camellia sinensis) has been used in traditional medicine systems, particularly in East Asia, for a variety of health conditions. In the context of lung congestion, green tea has a history of traditional use, where it is consumed as a warm beverage believed to soothe the throat and help with mild respiratory symptoms. The traditional rationale is often linked to its natural warmth, mild stimulant effects, and antioxidant properties, which are thought to support general respiratory health.

From a scientific standpoint, green tea contains bioactive compounds such as catechins (notably epigallocatechin gallate, or EGCG), which have demonstrated anti-inflammatory and antioxidant effects in laboratory studies. However, direct evidence supporting its efficacy for treating or significantly relieving lung congestion is limited. While some studies suggest green tea may have mild antimicrobial effects and may modulate immune response, there is no strong clinical evidence confirming that green tea directly clears lung congestion or acts as an expectorant. Most research focuses on green tea’s potential role in reducing the risk of chronic respiratory diseases (such as COPD) rather than acute congestion.

In summary, traditional use exists, and there are plausible mechanisms for respiratory support, but robust clinical evidence for using green tea specifically for lung congestion is lacking. The evidence rating is therefore modest.

More about green tea
More about Congestion (lungs)

Other ingredients used for Congestion (lungs)

Abies spectabilis
Aconite
Adenophora
Agastache
Alantolactone
Allicin
Allium tuberosum
Allspice
Allyl isothiocyanate
Aloe vera
alpha-pinene
alpinia galangal
ambergris
Amor seco
andrographolide
Angelica
anise
Ardisia
Arisaema
asafoetida
Asarum heterotropoides
Asarum sieboldii
aster root
atractylodes
atractylone
Baccharoides anthelmintica
bael
Baikal Skullcap
balloon flower
balsam
Baphicacanthus cusia
Barleria
basil
bayleaf
bee hive
bee products
Belamcanda
benegut perilla (proprietary)
berry
beta-pinene
Bidens pilosa
bisabolene
bishop\'s weed
bitter grass
black cumin
black currant
black pepper
black salt
black seed
blackboard tree
Blepharis
Bombax
boneset
borage
borneol
Boswellia
Boswellic Acid
Buddha\'s hand
Bupleurum
bupleurum falcatum
bасора
cajuput
calamus
Camellia sinensis
capsaicinoids
capsicum
cardamom
Carthamus
cayenne pepper
chamomile
chen pi
Chinese raisintree
Chinese salvia root
Chinese silkvine
Chondrus
chrysanthemum
cineole
cinnamaldehyde
Cistus
Citrus
Clerodendrum trichotomum
clove
coltsfoot
Coptis chinensis
cowherb
culvers Root
curcumen
curry leaf
diterpenes
dragonhead
Echinacea
echinacea purpurea
Eclipta
Elder
elderberry
elecampane
Ephedra
ephedrine
essential oil blend
eucalyptus
European Elder
European five-finger grass
Evodia
fang-feng
fat liver oil
ferula assafoetida
flavoglycosides
forsythia
frankincense
fritillaria
Galangal
Gallesia
gamma-terpinene
Gardenia jasminoides
garlic bulb
ginger
Glycyrrhetinic acid
Gnaphalium
grape
green tea
Guaco
Heartsease
Hedyotis
Helicteres isora
honey
horehound
Horsemint
horseradish
Houttuynia
hyssop
Indian frankincense
Indian tinospora
inula racemosa
Isatis
Ivy
jungli-bean
juniper berries
Khella
labrador tea
Laggera pterodonta
Ledebouriella
lemongrass
lichen
licorice root
Ligusticum
Ligustrazin
limonene
Litsea
Lomatium
long pepper
lovage
lungwort
malabar nut
mallow
Meadow sage
Menthol oil
Methylxanthine
Monoterpenes
Mountain Pepper
Mucolase
Mugwort
Mullein
Mustard
mustard seed
Neoandrographolides
Nutmeg
onion
Ophiopogon
ophiopogon root
oregano
oriental arborvitae
Oroxylum indicum
Orris
Osha
Paris polyphylla
Pepper
perilla
Peucedanum
Phellodendron
phellodendron amurense
phenolic compounds
Pinellia ternata
Piper nigrum
Piper retrofractum
Platycodon
platycodon root
Pluchea
Polygonum
pomegranate
prepared aconite tuber
Pyrrosia
quercetin
ravinsara
rosemary
Rubiaceae
Sagebrush
Sambucus nigra
Sandalwood
scrophularia root
Servicetree
Sesquiterpenes
shiitake mushroom
Sichuan Lovage
Sichuan pepper
siler root
Smartweed
Solanum indicum
Sophora
spearmint leaf
Sphaeranthus indicus
spruce
squawvine
Stereospermum
Sulfated polysaccharide
Sundew
sweet flag
Szechuan lovage
Tamaricaceae
Tayuya
Terpinolene
thyme
Thymus
Trichosanthes
turmeric
Vasicine
Vasicinone
Vervain
Viola
Violet
Visnea Mocanera
vitamin C
Vladimiria souliei
Winter Savory
Wulinshen
Yellow root
Yerba buena
Yerba santa
zanthoxylum
Zedoary
Zingerone
Zingiberene

Other health conditions supported by green tea

Acne
Addictions (coffee, caffeine)
Age Spots
Aging (prevention)
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Antibiotics (alternatives to)
Anxiety
Anxiety Disorders
Appetite (excessive)
Arteriosclerosis
Arthritis
Asthma
Athletic and Exercise Aids
Autoimmune Disorders
Belching
Benign Prostate Hyperplasia
Bites and Stings
Bleeding (internal)
Blood in Urine
Bloodshot Eyes
Breast Lumps
Cancer (natural therapy for)
Cancer (prevention)
Cardiovascular Disease
Cartilage Damage
Cellulite
Cervical Dysplasia
Chemotherapy (reducing side effects)
Chicken Pox
Cholesterol (high)
Cholesterol (low)
Chronic Obstructive Pulmonary Disorder
Circulation (poor)
Circulation (to the brain)
Cirrhosis of the Liver
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colic (children)
Colitis
Colon (atonic)
Colon (spastic)
Concentration (poor)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (lymphatic)
Congestion (sinus)
Conjunctivitis
Constipation (adults)
Contagious Diseases
Convalescence
Cough (damp)
Cough (dry)
Cough (general)
Cough (spastic)
Cramps (menstrual)
Crohn's Disease
Cuts
Cystic Breast Disease
Cystic Fibrosis
Cytomealovirus
Dandruff
Debility
Dementia
Denture Sores
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Diarrhea
Digestion (poor)
Down Syndrome
Endometriosis
Epstein Barr Virus
Eye Infections
Eye Problems
Eyes (red or itching)
Fibroids (uterine)
Free Radical Damage
Fungal Infections
Glaucoma
Hemochromatosis
Irritable Bowel Syndrome
Parkinson's Disease
Perspiration (excessive)
PMS (general)
Polyps
Rosacea
Skin (oily)
Abdominal Pain
Abscesses
Body Odor
Cancer Treatment (reducing side effects)
Fatigue
Gastritis
Gingivitis
Hair (loss or thinning)
Headache (general)
Hypertension
Inflammation
Influenza
Liver Detoxification
Memory and Brain Function
Oral Surgery
Psoriasis
Stress
Triglycerides (high)
Ulcers
Urinary Tract Infections
Wrinkles