Evidence supporting the use of: Vitamin C
For the body system: Brain

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Vitamin C (ascorbic acid) is supported by scientific evidence as an important nutrient for brain health, though most research focuses on its general role in brain maintenance rather than as a treatment for specific neurological conditions. Vitamin C is a potent antioxidant, protecting brain cells from oxidative stress, which is implicated in aging and neurodegenerative diseases like Alzheimer’s and Parkinson’s. The brain contains high concentrations of vitamin C, especially in regions involved in cognition, suggesting its physiological importance.

Experimental and observational studies have shown that vitamin C deficiency can impair cognitive function, while adequate levels are associated with better mental performance. Some small clinical studies have linked higher vitamin C status with improved cognitive function in elderly populations, although results are mixed and causality is not established. Preclinical research also shows that vitamin C is involved in neurotransmitter synthesis (such as dopamine and norepinephrine), and in modulating neuronal signaling and neuroprotection.

However, there is no compelling evidence that supplementation above the recommended daily allowance improves brain function in healthy individuals. Large-scale, high-quality clinical trials are lacking. Therefore, while there is a plausible biological rationale and some supporting evidence, the overall strength of evidence for vitamin C supplementation to support the brain is moderate.

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5-Hydroxytryptophan (5-HTP)
5-methyltetrahydrofolate glucosamine
7,14-Hydroxy-Docosapentaenoic Acid
7,8-Dihydroxyflavone
Acetyl L-carnitine
Acetyl-L-Tyrosine
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Agarwood
Agmatine
Albizia
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algal oil
Algal protein
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Alpha glyceryl
Alpha lactalbumin
alpha-linolenic acid (ALA)
alpha-lipoic acid
alpha-pinene
amino acids
AMP-activated protein kinase (AMPK)
anamu
anchovies
Angelica
animal protein
aniracetam
anserine
anthocyanidins
anthocyanins
anthocyanosides
antler
apigenin
apocynin
apple
arachidonic acid
arginine creatine
Arginine silicate
ashitaba
ashwagandha
asiaticoside
astaxanthin
Asteraceae
astragaloside
avocado
baccosides
Bacopa
Bacopin
bacoside
baicalein
baicalin
Baikal Skullcap
banana
Basidiomycota
basil
BCAA
bee pollen
bee products
beef
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belleric myrobalan
benfotiamine
bergamot
berry
beta caryophyllene
beta phenethylalamine
beta-hydroxybutyrate
betony
bilobalide
biopterin
bird\'s nest
black cumin
black currant
black galingale
black garlic
black ginger
black pepper
black seed
black tea
blackberry
blubber oil
Blue-Green Alage
blueberry
bone marrow
borage
borneol
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bovine liver
brahmi
branched-chain amino acids
Brazil nut
breadnut
broad bean
broccoli
Brussel sprouts
butylphthalide
bасора
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cactus
caffeine
calamari oil
calamus
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cannabichromene
cannabidiol
cannabigerol
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carnosol
caryophyllene
cassia bark
catalpol
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catuaba
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chaga mushroom
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chia seed
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cod liver oil
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coffee fruit
cola nut
colostrum
Convolvulus pluricaulis
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copper
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currant
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cytidine
cytisine
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damiana
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deanol
decursin
deer velvet
dehydroascorbic acid
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dibenzo-alpha pyrones
dihydrolipoic acid
dihydromyricetin
dismutase
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eleuthero
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fo-ti
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long pepper
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lutein
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macamides
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pu-er tea
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pyrroloquinoline quinone
quercetin
quinoa
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rosavins
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rosmarinic acid
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Sandalwood
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sceletium
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seaweed
selenium
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Selenomethionine
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sesame
Sesamin
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Shankhpushpi
Shilajit
Sialic acid
Sida cordifolia
silk tree
skullcap
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Southern Tsangshu
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soybean
spearmint leaf
specialized pro-resolving mediators (SPMs)
Sphaeranthus indicus
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spinach
spirulina
St. John's Wort
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Stephania root
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strawberry
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sulforaphane glucosinolate
Sumbul
sweet flag
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Tagara
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Taxifolin
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Teacrine
Terminalia
terpene lactones
Terpenoids
Tetrahydropalmatine
Theacrine
Thiamin (vitamin B1)
Threonic acid
thyme
Thymoquinone
Tinospora cordifolia
tocotrienols
Tongkat ali
trace minerals
Trans-pterostilbene
Tremella
Triacetyluridine
Trichilia catigua
Trichopus zeylanicus
Triphala
Troxerutin
Tumerone
turmeric
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ubiquinol
Uncaria
Uridine
Urolithin A
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Valerian root
vegetable and fruit blend (proprietary)
Vegetable Protein
velvet bean
Verbena
Vervain
Vetiver
Vinburnine
Vincamine
Vine tea
Vinpocetine
vitamin A
vitamin B
vitamin B12
vitamin B6
vitamin C
vitamin D
vitamin D3
vitamin E
Vitexin
Walnut
Waterhyssop
wheat germ
Whey protein
White Tea
Willow
Withanolides
Wogonin
Wood betony
Xanthine
Xanthohumol
Xylaria nigripes
Yerba mate
Zapilopatle Bean
Zinc
Zinc
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