Relationship: Colds (general) and green tea

Evidence supporting the use of: Green tea
For the health condition: Colds (general)

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Synopsis
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Synopsis

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

Green tea (Camellia sinensis) has a long history of use in traditional medicine for various ailments, including colds and other respiratory infections. The primary interest in green tea for cold support stems from its high content of catechins, particularly epigallocatechin gallate (EGCG), which have demonstrated antiviral, antibacterial, and immunomodulatory properties in laboratory studies. Some in vitro studies suggest that green tea catechins can inhibit the replication of common cold viruses, such as influenza and some coronaviruses. Additionally, green tea’s antioxidant and mild anti-inflammatory effects may help modulate immune responses and reduce symptoms.

Clinical evidence in humans, however, is limited and not definitive. A few small randomized controlled trials have found that regular green tea consumption or catechin supplementation may slightly reduce the incidence or duration of upper respiratory tract infections, but the results are inconsistent and not robust enough to recommend green tea as a primary treatment for colds. Most guidelines still regard green tea as a supportive measure, potentially contributing to hydration and symptom relief rather than providing a cure. Overall, while laboratory and preliminary clinical data provide scientific rationale for green tea’s use in supporting the body during a cold, the evidence is moderate at best, and further well-designed human studies are needed to confirm its efficacy.

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Other ingredients used for Colds (general)

3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid
Abies spectabilis
Abrus
Acacia
Aconite
Aerva lanata
Agastache
Ajuga
Alcohol
Algae
Allicin
Alliin
Allium tuberosum
Allspice
Allyl isothiocyanate
Allyl sulfide
Aloe vera
alpha-terpineol
alpinia galangal
American Liverleaf
Amomum
Amor seco
anamu
Andrographis
andrographolide
Angelica
anthocyanins
apple
apple cider vinegar
arabinogalactan
Aralia
Arani
Ardisia
Asam gelugor
Asarum heterotropoides
ash
aster root
Asteraceae
astragalus
atractylodes
atractylone
avens
Baccharoides anthelmintica
bael
Baikal Skullcap
balsam
bamboo
banyan
Baphicacanthus cusia
barberry
Barleria
basil
Bassia scoparia
bayleaf
bee hive
bee pollen
bee products
bee propolis
Belamcanda
benegut perilla (proprietary)
bermuda grass
berry
beta-pinene
Bidens pilosa
bioflavonoids
birch
bishop\'s weed
bitter grass
bitter principals
black cumin
black currant
black galingale
black garlic
black nightshade
black pepper
black salt
black seed
black tea
blackberry
blackboard tree
blackthorn
Blepharis
blueberry
Boerhavia diffusa
Bombax
boneset
Borassus aethiopum
borassus palm
borneol
Bougainvillea
boxthorne
Broussonetia
buckthorn
Buddha\'s hand
Bupleurum
bupleurum falcatum
bur-reed
burdock
Butea monosperma
bасора
cajuput
calamus
Camellia sinensis
capillary artemisia
capsaicin
capsaicinoids
capsicum
cardamom
carrot
Carthamus
carvacrol
cassia bark
caterpillar mushroom
cayenne pepper
Celosia
chamomile
Chinese mountain ant
Chinese raisintree
Chinese silkvine
chive
Chlorophytum
Chondrus
chrysanthemum
chrysophanics
cineole
cinnamaldehyde
Cinnamomum
cinnamon
Cistus
citron
Citrus
citrus sinensis (proprietary)
Clerodendrum trichotomum
cloudberry
clove
coconut
coconut milk
coconut oil
Coin-leaf desmodium
cola nut
colostrum
commiphora
common madia
coriander
costus
cowherb
cowslip
culvers Root
cumin
Curcuma
curcumen
Curcuminoid
currant
curry leaf
David\'s milkberry
deoxyandrographolides
Desmodium
Dianthus
dodder
dodeca-2E, 4E, 8Z, 10Z/tetraenoic acid isobutylamide
dodeca-2E, 4E-dienoic acid isobutylamide
dog rose
dragonhead
dulse leaf
Echinacea
echinacea purpurea
Eclipta
Elder
elderberry
Embelia
English horsemint
Ephedra
essential oil blend
eucalyptus
Eupolyphaga sinensis
European Elder
European five-finger grass
Evodia
fang-feng
fat liver oil
ferula assafoetida
Ficus simplicissima
flat-stem milk-vetch
flavonones
flowering quince
forsythia
frankincense
fruit
fulvic acid
Gallesia
gamma-terpinene
Gardenia jasminoides
garlic
garlic bulb
giant blazingstar
Gigartina
ginger
ginseng
Glechoma hederacea
Glycyrrhizin
Gnaphalium
goldthread
gooseberry
grape
Greek mountain tea
green chiretta
green tea
greens blend (proprietary)
heal-all
Hedyotis
Helicteres isora
hemp
Herb Robert
honey
honey loquat syrup
honeysuckle
horehound
Horsemint
horseradish
hyacinth bean
Hygrophila
hyssop
Ilex
Indian bael
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Indian tinospora
indigo leaves
iridoid glycosides
iridoids
Isatis
joe-pye
jujube
jungli-bean
Kokilaksha
kuding tea
Kukicha
L-cysteine
labrador tea
lactiplantibacillus plantarum
Lactobacillus fermentum
Lactobacillus reuteri
Laggera pterodonta
Lebbek
Ledebouriella
lemon
lemongrass
lichen
licorice root
Ligusticum
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lime
limonene
linalool
Litsea
little ironweed
liverwort
lodhtree
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long pepper
loquat
lotus
lovage
luffa
lychee
lysozyme
mace
mallow
mandarin
manzanita
maple
marigold
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Marshmallow
Mastic gum
Maytenus ilicifolia
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mustard seed
Myrcene
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Nymphaea nouchali
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Onosma bracteatum
Ophiopogon
orange
oregano
oregon grape
Oroxylum indicum
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Oryza sativa
Osha
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Oxystelma
pagoda tree
papaya
Paris polyphylla
Patrinia
paw paw
peach
pear
Pelargonium
peony
Pepper
perilla
Persimmon
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phellodendron amurense
phenolic compounds
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Phosphate ascorbate
Phyllanthus
Physalis angulata
pineapple
Piper chaba
Piper nigrum
Piper retrofractum
pistacia integerrima gall
plantain
Pluchea
plum fruit
Polygonatum
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pomegranate
Portulaca
Propolis
Prunus
pumpkin
purslane
Pyrrosia
quail egg
quercetin
Quillaja
radish
raspberry
ravinsara
reishi mushroom
rhizome
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rose
rose hips
rosemary
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Sagebrush
Salvia
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Sandalwood
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sarsaparilla
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schizonepeta
Scoparia dulcis
scrophularia root
Sesbania
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siler root
Sinigrin
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Spikenard
spirulina
spruce
squawvine
Sumac
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sweet flag
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Terminalia
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turmeric
typhonium
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vitamin B
vitamin C
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xanthium (cockleburs)
Yeast
Yellow-Fruit Nightshade
Yerba buena
Yerba santa
Yuzu
zanthoxylum
Zinc
Zingerone
Zingiberene
Zucchini

Other health conditions supported by green tea

Abdominal Pain
Abscesses
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
Body Odor
Breast Lumps
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
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)
Fatigue
Fibroids (uterine)
Free Radical Damage
Fungal Infections
Gastritis
Gingivitis
Glaucoma
Hair (loss or thinning)
Headache (general)
Hemochromatosis
Hypertension
Inflammation
Influenza
Irritable Bowel Syndrome
Liver Detoxification
Memory and Brain Function
Oral Surgery
Parkinson's Disease
Perspiration (excessive)
PMS (general)
Polyps
Psoriasis
Rosacea
Skin (oily)
Stress
Triglycerides (high)
Ulcers
Urinary Tract Infections
Wrinkles

Products containing green tea

Health Concerns

Brands

Evidence supporting the use of: Green tea
For the health condition: Colds (general)

Table of Contents

Synopsis

Other ingredients used for Colds (general)

Other health conditions supported by green tea

Products containing green tea

Health Concerns

Brands

Evidence supporting the use of: Green teaFor the health condition: Colds (general)

Table of Contents

Synopsis

Other ingredients used for Colds (general)

Other health conditions supported by green tea

Products containing green tea

Evidence supporting the use of: Green tea
For the health condition: Colds (general)