Relationship: Asthma and vitamin C

Evidence supporting the use of: Vitamin C
For the health condition: Asthma

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Synopsis

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

Vitamin C (ascorbic acid) has been investigated as a supportive treatment for asthma due to its antioxidant and anti-inflammatory properties. The rationale is that oxidative stress and inflammation play roles in asthma pathogenesis, and vitamin C may help mitigate these processes. Historically, vitamin C has not been widely used in traditional medicine specifically for asthma, but interest in its potential benefits grew with modern research into antioxidants and respiratory health.

Several small clinical trials and observational studies have explored the effects of vitamin C supplementation in people with asthma. Some studies have reported modest improvements in lung function (such as FEV1), reduced bronchial hypersensitivity, and fewer asthma exacerbations, particularly in cases where symptoms are triggered by exercise or respiratory infections. However, results have been inconsistent, and many trials have methodological limitations, including small sample sizes and short durations.

Systematic reviews and meta-analyses generally conclude that while vitamin C may have minor beneficial effects—especially in subgroups like those with exercise-induced asthma—the overall evidence is not strong enough to recommend routine vitamin C supplementation for asthma management. Leading asthma guidelines do not include vitamin C as a standard treatment. More robust, large-scale studies are needed to clarify its role. In summary, scientific interest exists, but evidence remains limited and inconclusive.

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Other ingredients used for Asthma

1,3,7-Trimethylpurine-2,6-dione
Abrus
Acacia
Aconite
adrenal cortex
Adrenergic amines
Aerva lanata
Agarwood
Agastache
Ajuga
Albizia
Allium tuberosum
Almond fruit
alpha-pinene
alpinia galangal
Alstonia scholaris
amber
ambergris
American Liverleaf
Amor seco
Anamarrhena
anamu
Andrographis
andrographolide
Angelica
angel\'s trumpet
anise
apigenin
apocynin
apple
Aralia
Arani
Ardisia
Arisaema
asafoetida
Asarum heterotropoides
Asarum sieboldii
ashwagandha
aster root
Asteraceae
astragalin
astragaloside
atractylodes
atractylone
Auricularia
Baccharoides anthelmintica
bacoside
bacteria
bael
baicalein
baicalin
Baikal Skullcap
balloon flower
balsam
bamboo
banana
banyan
Baphicacanthus cusia
barberry
Barleria
Basidiomycota
basil
Bassia scoparia
bayleaf
bee hive
bee pollen
bee products
bee propolis
beet
Belamcanda
benegut perilla (proprietary)
Bergenia
bergenin
bermuda grass
beta caryophyllene
betel
Bidens pilosa
Bifidobacterium longum
biota seed
bird\'s nest
bishop\'s weed
black cumin
black currant
black galingale
black garlic
Black Hellebore
black nightshade
black pepper
black root
black seed
blackboard tree
Blepharis
Boerhavia diffusa
Bombax
borage
Borassus aethiopum
borassus palm
borneol
Boswellia
Boswellic Acid
Bougainvillea
Broussonetia
buckthorn
Bupleurum
Butea monosperma
butterbur
bасора
cactus
Caesalpinia crista
caffeine
California chia
Cannabis sativa oil
capillary artemisia
capsicum
cardamom
carrot
carry me seed
caryophyllene
catecholamine
caterpillar mushroom
cayenne pepper
Celosia
Centipeda
Chaenomeles lagenaria
chaff flower
Chekiang Fritillary
chinatree
Chinese Ligustrum berry
Chinese mountain ant
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Chinese salvia root
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Chlorophytum
chocolate
chrysanthemum
cineole
Cinidium
cinnamic acid
Cinnamomum
citron
Citrus
Clerodendrum indicum
Clerodendrum indicum
Clerodendrum phlomidis
Clerodendrum trichotomum
Clostridium butyricum
clove
Cnidium
coca
cocoa
cod liver oil
Codonopsis
Coin-leaf desmodium
cola nut
coltsfoot
commiphora
cordyceps
cortisol
costus
cowage seed
cowherb
cubeb
cumin
Curcuma
curcumen
curcumin
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curry leaf
Cyanthillium cinereum
cypress
Desmodium
DHA (docosahexaenoic acid)
Dichrostachys glomerata
dioscorea
divi-divi
dodder
dragonhead
Echinodorus
Eclipta
eicosapentaenoic acid
elecampane
elephant\'s head
Embelia
EPA (eicosapentaenoic acid)
Ephedra
ephedrine
epigallocatechin gallate (EGCG)
Erodium cicutarium
Erythropalum scandens
essential oil blend
Euphorbia
Eupolyphaga sinensis
European Elder
European five-finger grass
Evodia
fatty acids
fennel
fern
fernbush
ferula assafoetida
Ficus religiosa
Ficus simplicissima
fig
fish oil
flavanones
flavones
flavonoids
flavonols
flavonones
Fomes fomentarius
forskohlii root
frankincense
fringed pink
fritillaria
fritillary
fruit
fulvic acid
fungus
Galangal
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gallic acid
ganoderma
garden cress
garlic
garlic bulb
gastrodia
giant blazingstar
ginger
ginkgo biloba
ginkgolides
ginseng
Ginsenosides
Glechoma hederacea
Glehnia littoralis
glehnia root
Glycyrrhetinic acid
Gnaphalium
goji berry
goldthread
gooseberry
Greek mountain tea
green tea
green-lipped mussel
Grindelia
Guaco
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Guazuma ulmifolia
Gypenoside
heal-all
Heartsease
heartwood
Hedychium spicatum
Helicteres isora
Hellebore
Hemidesmus
hemp
Hempnettle
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herbal blend (proprietary)
Himalayan salt
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honey
honey loquat syrup
horehound
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horseradish
Huang hua
hyacinth bean
Hygrophila
hyssop
Ilex
Indian bael
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Indian tinospora
indigo leaves
inula racemosa
iridoid glycosides
iridoids
isoquinoline alkaloids
Ivy
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Javanese Long Pepper
jujube
jungli-bean
Kachnar
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Kefir
Khella
kiwi
Kokilaksha
kudzu
labrador tea
Laggera pterodonta
Lebbek
lemongrass
Leptadenia
Lesser speargrass
lichen
licorice root
ligustilides
Ligustrazin
Lilium polyphyllum
linalool
lingzhi
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little ironweed
liverwort
lobelia
lodhtree
long pepper
longan
loquat
Loranthus
lotus
luffa
luteolin
Lycium
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mace
magnesium
magnolol
Maidenhair Fern
malabar nut
mallow
Malva sylvestris
mandarin
marigold
Marine fat
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mustard seed
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nut grass
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omega-3 fatty acids
onion
Onosma bracteatum
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ophiopogon root
orange
orchid
oregano
oriental arborvitae
Oroxylum indicum
Osha
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paeoniflorin
pagoda tree
papaya
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paw paw
peach
pear
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peony
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perilla
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phellodendron amurense
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phytocannabinoids
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pine bark
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pistacia integerrima gall
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plantain
Platycodon
platycodon root
Plectranthus amboinicus
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plum fruit
Polygala
polygala root
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polymorpha
polyphenols
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polyunsaturated fat
Portulaca
Premna
prepared aconite tuber
Propolis
Prunus
pumpkin
punarnava
purslane
Pycnogenol
Pyrrosia
quail egg
quercetin
Quisqualis
radish
raspberry
ravinsara
reishi mushroom
rhizome
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root tuber
rosemary
rosmarinic acid
royal jelly
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rue
Sabadilla
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saponins
schizonepeta
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scrophularia root
seaweed
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Sensitive Plant
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Sete sangrias
shen-chu
shiitake mushroom
Shilajit
Sickle-leaf hare's ear
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siler root
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slippery elm bark
Smartweed
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Solanum anguivi
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soursop
Southern Tsangshu
Southernwood
Spanish Needle
specialized pro-resolving mediators (SPMs)
Speedwell
Sphaeranthus indicus
Spikenard
spirulina
squawvine
Stachytarpheta cayennensis
Stellaria dichotoma
Stemona
Stephania root
Stereospermum
Storax
Sumac
Sundew
Sweet Annie
Sweet Bay
sweet flag
sweetgums
Swertia
Sword Bean
Szechuan lovage
Tagetes
Tamaricaceae
Tamarind
Tayuya
Tea
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Thaumatococcus daniellii
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thyme
Thymoquinone
Thymus
Tinospora cordifolia
Trametes
Tremella
Trichosanthes
Triphala
Triterpenes
Tulbaghia
turmeric
Tylophora
typhonium
Uncaria
Varuna
Vasicine
Vasicinol
Vasicinone
Vervain
Viola
Violet
Visnea Mocanera
vitamin C
vitamin D
vitamin D3
vitamin E
Vladimiria souliei
Watercress
Waterhyssop
wheat grass
Withanolides
Wulinshen
Xanthine
xanthium (cockleburs)
Xanthophyll
Yellow-Fruit Nightshade
Yerba santa
Yuzu
zanthoxylum
zhejiang fritillary
Zingerone
Zingiberene
Zucchini

Other health conditions supported by vitamin C

Abrasions
Abscesses
Acne
Acquired Immune Deficiency Syndrome
Addictions (general remedies for)
Addison's Disease
Adrenal Fatigue
Age Spots
Aging (prevention)
Alcoholism
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Anal Fistula or Fissure
Anemia
Antibiotics (alternatives to)
Antibiotics (side effects of)
Anxiety
Arteriosclerosis
Arthritis
Asthma
Athletic and Exercise Aids
Autism
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Bell's Palsy
Bites and Stings
Bladder Infection
Bleeding (external)
Bleeding (internal)
Blood Poisoning
Boils
Bronchitis
Bruises (healing)
Bruises (prevention)
Burns and Scalds
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Canker Sores
Capillary Weakness
Carbuncles
Cardiovascular Disease
Cartilage Damage
Cataracts
Cervical Dysplasia
Chemical Poisoning
Chemotherapy (reducing side effects)
Chicken Pox
Cholesterol (high)
Chronic Obstructive Pulmonary Disorder
Cold Sores
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colon (atonic)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (sinus)
Conjunctivitis
Contagious Diseases
Convalescence
Copper Toxicity
Cough (dry)
Cough (general)
Cuts
Cystic Breast Disease
Cystic Fibrosis
Debility
Dementia
Denture Sores
Depression
Diabetes
Diabetic Retinopathy
Environmental Pollution
Epstein Barr Virus
Eye Problems
Eyesight (poor)
Fatigue
Fatty Liver Disease
Free Radical Damage
Gall Stones
Gastritis
Gingivitis
Glaucoma
Gonorrhea
Gout
Hair (loss or thinning)
Hair Care (general)
Heart (weakness)
Heavy Metal Poisoning
Hemorrhoids
Hepatitis
Herpes
Hot Flashes
Hypertension
Infection
Infection (bacterial)
Infection (viral)
Infertility
Inflammation
Inflammatory Bowel Disorders
Influenza
Injuries
Knees (weak)
Laryngitis
Lead Poisoning
Lesions
Leucorrhea
Leukemia
Ligaments (torn or injured)
Liver Detoxification
Lyme Disease
Macular Degeneration
Mastitis
Measles
Memory and Brain Function
Menorrhagia
Menstrual Irregularity
Menstruation (scant)
Metabolic Syndrome
Mononucleosis
Mumps
Nose Bleeds
Oral Surgery
Osteoporosis
Pancreatitis
PMS (general)
PMS Type C
PMS Type H
Pneumonia
Post Partum Weakness
Pregnancy (herbs and supplements for)
Progesterone (low)
Prolapsed Uterus
Prostatitis
Radiation Sickness
Rashes and Hives
Restless Leg Syndrome
Rheumatoid Arthritis
Rhinitis
Rhinitis, Allergic
Rosacea
Scars / Scar Tissue
Schizophrenia
Scratches and Abrasions
Scurvy
Shingles
Shock
Sinus Infection
Skin (infections)
Skin Care (general)
Sore Throat
Spider Veins
Spinal Disks
Sprains
Strep Throat
Stretch Marks
Sunburn
Surgery (healing from)
Surgery (preparation for)
Teeth (loose)
Tendonitis
Thrush
Tickle in Throat
Tonsillitis
Tooth Extraction
Toxemia
Triglycerides (high)
Tuberculosis
Ulcerations (external)
Ulcers
Uric Acid Retention
Urinary Tract Infections
Vaginitis
Varicose Veins
Warts
Wounds and Sores
Wrinkles

Products containing vitamin C

Health Concerns

Brands

Evidence supporting the use of: Vitamin C
For the health condition: Asthma

Table of Contents

Synopsis

Other ingredients used for Asthma

Other health conditions supported by vitamin C

Products containing vitamin C

Health Concerns

Brands

Evidence supporting the use of: Vitamin CFor the health condition: Asthma

Table of Contents

Synopsis

Other ingredients used for Asthma

Other health conditions supported by vitamin C

Products containing vitamin C

Evidence supporting the use of: Vitamin C
For the health condition: Asthma