Relationship: Cancer (prevention) and vitamin C

Evidence supporting the use of: Vitamin C
For the health condition: Cancer (prevention)

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Synopsis
Other ingredients for this health condition
Other health conditions supported by this ingredient
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Synopsis

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

Vitamin C (ascorbic acid) has a long and complex history regarding its use in cancer prevention and treatment. Scientific interest was sparked in the 1970s when Nobel laureate Linus Pauling and colleagues suggested high-dose vitamin C could help cancer patients, based on early clinical observations and theoretical antioxidant properties. These early studies were not randomized and later randomized controlled trials failed to show a survival benefit for oral vitamin C in cancer patients. More recently, attention has shifted to intravenous (IV) vitamin C, which can achieve much higher plasma concentrations than oral dosing. Preclinical studies suggest that high-dose IV vitamin C may exert pro-oxidant effects selectively toxic to cancer cells and may enhance the efficacy of some chemotherapies. However, large-scale, high-quality clinical trials in humans are still lacking, and the current evidence for vitamin C as a cancer preventive agent remains limited and inconclusive. While some epidemiological studies associate higher vitamin C intake from fruits and vegetables with lower cancer risk, these findings do not establish causality and may reflect overall healthier lifestyles. Major cancer organizations do not currently recommend vitamin C supplements specifically for cancer prevention or treatment outside of clinical trials. In summary, scientific interest exists, and some early-phase research is promising, but the overall evidence supporting vitamin C for cancer prevention is weak at present.

More about vitamin C
More about Cancer (prevention)

Other ingredients used for Cancer (prevention)

15,16-Dihydrotanshinone I
3-(4-hydroxy-3-methoxyphenyl)prop-2-enoic acid
7-hydroxymatairesinol (HMR)
8-Bromo-7-Methoxychrysin
Abalone
Acacetin
Acai berry
Acemannan
Acetogenin
Achyranthes
Adzuki bean
Agarikon Mushroom
AHCC
Ajoene
Akkermansia muciniphila
Alantolactone
Albizia
Algae
algal oil
Algal protein
Allicin
Alliin
Allium tuberosum
Allophycocyanin
Allyl isothiocyanate
Allyl mercaptan
Allyl sulfide
Alpha-carotene
alpha-humulene
alpha-linolenic acid (ALA)
alpha-lipoic acid
alpha-methylselenobutanoic acid
alpinia galangal
amentoflavone
American Pawpaw
amethoflavone
AMP-activated protein kinase (AMPK)
ampelopsin
amygdalin
anamu
Andrographis
andrographolide
ankaflavin
anthocyanidins
anthocyanins
anthocyanosides
anti-aromatase
Antrodia camphorata
apigenin
apple
apricot
arabinoxylan
Aralia
arctiin
Ardisia
Arjunolic acid
Armillaria mellea
Aronia melanocarpa
Artepillin C
arugula
ashitaba
ashwagandha
astaxanthin
aster root
Asteraceae
astragalin
astragaloside
astragalus
atractylone
Auricularia
avocado
bacteria
bael
baicalein
baicalin
Baikal Skullcap
banyan
baobab
barbasco
barberry
barley
Basidiomycota
basil
Bassia scoparia
Bauhinia
bayleaf
bean
bee pollen
bee products
bee propolis
Beef liver
beet
benzyl isothiocyanate
berberine
bergenin
berry
beta and delta tocopherols
beta caryophyllene
beta-carotene
beta-glucan
beta-lapachone
beta-sitosterol
betanin
betulinic acid
Bidens pilosa
bignay
biochanin
biota seed
black cumin
black galingale
black garlic
black ginger
black seed
black tea
black walnut
blackberry
blueberry
Boerhavia diffusa
bok choy
Bombax
Borassus aethiopum
Boswellia
bran
branched-chain amino acids
Brassica
Brazil nut
breadnut
broccoli
Brussel sprouts
Buckwheat
burdock
Butea monosperma
butein
butenyl isothiocyanate
butyrate triglyceride
butyric acid
C-phycocyanin
cabbage
Caesalpinia crista
caffeic Acid
calycosin
Camellia sinensis
cancerina
capillary artemisia
capsaicin
capsaicinoids
capsanthin
capsicum
carnosic acid
carnosol
carotene (unspecified)
carrot
carvacrol
caryophyllene
casticin
cat's claw
catechins
caterpillar mushroom
cauliflower
cayenne pepper
Celastrus
Celosia
Centella asiatica
chaga mushroom
chalcone
champignon
cherry
chia seed
Chinese fleeceflower
Chinese Ligustrum berry
Chinese mountain ant
Chinese salvia root
chirata
chlorella
chlorogenic acid
chlorophyll
chlorophyllin
chocolate
chokeberry
Chordaria cladosiphon
chrysanthemum
cinnamaldehyde
cinnamic acid
Cinnamomum
cinnamon
cistanche
Citrus
citrus bioflavonoids
citrus pectin
Clostridium butyricum
clove
cocoa
coconut oil
cod liver oil
coix
collard
commiphora
condurango
conjugated linoleic acid (CLA)
Coprinus
cordyceps
corilagin
coriolus mushroom
costus
coumaric acid
cowage seed
cowherb
crocetin
cruciferous
cryptoxanthin
Cucurbita
cumin
Curcuma
curcumen
curcumin
Curcuminoid
curry leaf
cyanidin
cyanobacteria
cynaropicrin
Cynomorium
cytokines
d-alpha tocopherol
d-glucarate
daidzein
daidzin
date
decursin
delphinidin
DHA (docosahexaenoic acid)
diallyl disulfide (DADS)
diallyl sulfide
diallyl trisulfide (DATS)
Dichrostachys glomerata
didymin
Dihydrocapsaicin
DIM (diindolylmethane)
diosgenin
diosmetin
dithiolthiones
DNA
docosahexaenoic Acid
dodder
dong quai root
DPA (docosapentaenoic acid)
Dumontiaceae
Dunaliella
Dunaliella salina
E-Viniferin
Ecklonia
Eclipta
eicosapentaenoic acid
eleuthero
ellagic acid
ellagitannin
emblicanin
enokitake
EPA (eicosapentaenoic acid)
epicatechin
epigallocatechin gallate (EGCG)
equol (proprietary)
ergothioneine
eurycomanone
evodiamine
farnesol
fatty acids
fern
ferulic acid
fiber
fiber blend (proprietary)
fisetin
fish
fish oil
fish protein
Flammulina velutipes
flavanols
flavanones
flavans
flavones
flavonoids
flavonolignan
flavonols
flavonones
flaxseed
Flueggea suffruticosa
fo-ti
folate
Fomitopsis pinicola
formononetin
fruit
fruit and vegetable blend (proprietary)
fucoidan
fucosterol
fucoxanthin
fungus
Gac
Galangal
galangin
gallate
gallic acid
gamma tocopherol
ganoderma
garcinol
Garcinone A
Garcinone B
Garcinone C
Garcinone D
Garcinone E
garden cress
garlic
garlic bulb
Gelidiella acerosa
genistein
genistin
geraniol
geranylgeraniol
Gigartina
ginger
ginkgetin
ginseng
Ginsenosides
Glabridin
Glucan peptides
Glucoraphanin
Glucosinolates
Glutathione
goji berry
gooseberry
grape
grapefruit
Graviola
Greek mountain tea
green tea
greens blend (proprietary)
Guava
Gypenoside
Haematococcus pluvialis
heal-all
Hedyotis
Helicteres isora
Herb Robert
hericium mushroom
hesperetin
hesperidin
hibiscus
HMR lignan
Honokiol
Huang hua
Humulones
hydroxycinnamic acid
hydroxymatairesinol
hydroxytyrosol
Hyperoside
Hyphomycetes
hypsizygus marmoreus
icariin
Indian coraltree
Indian fagonia
Indian sarsparilla
Indian tinospora
indigo leaves
indole-3-carbinol
iridoids
Isatis
Isoalantolactone
isodon rubescens
isoflavones
isoliquiritigenin
isoquinoline alkaloids
isosilybin
isothiocyanates
isovitexin
Jaboticaba
Java brucea
jiaogulan
Job\'s tears
jujube
Kaempferol
kale
Kefir
Kefiran
kelp
kiwi
knotweed
Kohlrabi
Kokilaksha
Kombucha
Lactoferrin
Laggera pterodonta
Laminaria
Lapachol
Lebbek
Legume protein
lemon
lemongrass
Lentil
Lentinan
Lentinula edodes mycelia
Leptadenia
lichen
lignans
Ligusticum
Ligustrazin
Ligustrum
limonene
Limonium sinense
limonoid
lingzhi
lion's mane
long pepper
loquat
Loranthus
lotus
lupulone
lutein
luteolin
lychee
Lycium
lycopene
Lycoris
Macaranga indica
Maclura tricuspidata
magnolol
maitake mushroom
malvidin
mangiferin
mangostanol
mangosteen
mangostene xanthone
mangostin
marigold
Marine fat
Marine lipid
Marine protein
Maslinic acid
Matcha
Mayapple
Maytenus ilicifolia
medium chain triglycerides (MCT)
Melia
Mesima
Methoxylated flavones
Methylselenocysteine
Milk Protein
Millettia
mixed carotenoids
Momordica
Momordicosides
Mondo grass
Monoterpenes
Morinda
Moringa
Morus
Mulberry
Mushroom
mustard seed
Myricetin
Myricitrin
Myrosinase
Myrrh
Naphthoquinones
Naringenin
Naringin
Neem tree
Neoandrographolides
Nettle
Niacinamide (vitamin B3)
Nigella seed
Nobiletin
Nomilin
noni
nopal
nut grass
oleanolic acid
oleic acid
Oleuropein
Oligomeric proanthocyanidins
Oligosaccharides
olive
omega-3 fatty acids
onion
Onosma bracteatum
oolong tea
orange
Oroxylum indicum
Osmanthus
Osthole
oyster mushroom
pagoda tree
Pansit-pansitan
papaya
Paris polyphylla
parsley
parthenolide
pau d'arco
paw paw
Pentacyclic triterpenoids
Pepper
perilla
Periwinkle
Persimmon
Petiveria
Phaeophyceae
Phellodendron
phellodendron amurense
Phenethyl isothiocyanate (PEITC)
phenolic compounds
Phenylpropanoids
phlorotannins
Phthalides
Phycocyanin
Physalis angulata
Phytoecdysteroid
Phytoestrogens
phytosterols
Piceid
pineapple
Piper nigrum
Piperine
Pistachio
Pleurotus eryngii
plum fruit
Podophyllum
Pokeweed
Polydatin
Polygonatum
Polygonum
polymethoxylated flavones
polyphenols
polyporous mushroom
polysaccharides
pomegranate
pomelo
Poncirin
Portulaca
proanthocyanidins
procyanidin
Propionibacterium freudenreichii
Propolis
protein
Puerarin
pumpkin
punicalagins
punicic acid
punicosides
purslane
Pyrrosia
quail egg
quercetin
quinoa
radish
raspberry
red clover
reishi mushroom
resveratrol
Rhabdosia rubescens
rhizome
rhubarb
root tuber
Rosa roxburghii
rosemary
rosmarinic acid
royal jelly
Rubia cordifolia
Rubia yunnanensis
Rubiaceae
rutin
S-allylcysteine
Salidroside
Salmon Oil
Salvianolic acid
Sapogenin
saponins
Sargassum
Schisandrins
Schizophyllum commune
seaweed
secoisolariciresinol diglucoside
Selaginella
selenium
Selenocysteine
Selenomethionine
Semecarpus anacardium
sesame
Sesamin
Sesbania
Sesquiterpenes
Sete sangrias
shen-chu
shiitake mushroom
Shilajit
Shogaol
Sichuan Lovage
Silybin
Sinensetin
Sinigrin
Smartweed
smilax
Solanum indicum
Sophora
Sotetsuflavone
soursop
Soy
soy isoflavones
Soy Protein
soybean
Sphaeranthus indicus
spinach
spirulina
stigmasterol
Stilbenoid
strawberry
Sulfated polysaccharide
Sulforaphane
sulforaphane glucosinolate
suma
Sword Bean
Syringic acid
Tangeretin
Tanshinone
Taraxasterol
Taxifolin
Tea
Terpenoids
Theaflavin
Thiosulfinate
Thistle
Thymoquinone
Thymus
Tiliroside
Tinospora cordifolia
tocotrienols
Trametes
Trans-pterostilbene
Tremella
tributyrin
Triphala
Triterpenes
Tulbaghia
Tumerone
Turkey tail mushroom
turmeric
Turmerones
Tylophorine
typhonium
Typhonium flagelliforme
Uncaria
Urolithin A
Ursolic Acid
vegetable and fruit blend (proprietary)
Vegetable Protein
Verbascoside
Vestitol
Vicenin
Vine tea
Viniferin
vitamin A
vitamin B
vitamin C
vitamin D
vitamin D3
Vitexin
Wakame
Walnut
Wasabi
Water Pepper
Watercress
Wax Gourd
wheat germ
wheat grass
Whey protein
White Tea
Withanolides
Wogonin
Xanthohumol
Xanthone
Xanthoparmelia
Xanthophyll
Xanthorrhizol
Xylaria nigripes
Yacon
Yellow root
Yerba mate
Yumberry
Yuzu
zanthoxylum
Zedoary
Zinc
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
Autoimmune Disorders
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: Cancer (prevention)

Table of Contents

Synopsis

Other ingredients used for Cancer (prevention)

Other health conditions supported by vitamin C

Products containing vitamin C

Health Concerns

Brands

Evidence supporting the use of: Vitamin CFor the health condition: Cancer (prevention)

Table of Contents

Synopsis

Other ingredients used for Cancer (prevention)

Other health conditions supported by vitamin C

Products containing vitamin C

Evidence supporting the use of: Vitamin C
For the health condition: Cancer (prevention)