Evidence supporting the use of: Vitamin A
For the body system: Eyes

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Synopsis

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

Vitamin A is extensively validated by scientific research for its vital role in supporting eye health. It is an essential nutrient for the maintenance of normal vision. The active form of vitamin A, retinal, combines with the protein opsin to form rhodopsin, a molecule necessary for color vision and seeing in low-light conditions. Deficiency in vitamin A is a well-established cause of night blindness and, in severe cases, can lead to xerophthalmia, corneal ulcers, and permanent blindness. Numerous clinical and epidemiological studies have demonstrated that vitamin A supplementation prevents and treats these eye conditions, particularly in populations at risk for deficiency. The World Health Organization identifies vitamin A deficiency as a leading cause of preventable childhood blindness worldwide and recommends supplementation in settings where deficiency is prevalent. While vitamin A is critical for ocular health, excessive intake can be toxic, so supplementation should be guided by medical advice. In summary, the use of vitamin A for supporting the eyes is strongly supported by scientific evidence, with a clear understanding of its mechanisms and clinical benefits in vision and ocular tissue maintenance.

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Other ingredients that support Eyes

3,3'-dihydroxy-B-carotene-4,4'-dione
Acetyl L-carnitine
Alchornea
Algae
algal oil
Alpha-carotene
anchovies
anthocyanidins
anthocyanins
anthocyanosides
apricot
Aronia melanocarpa
astaxanthin
avocado
barbary matrimony vine
bee products
Beef liver
berry
beta-carotene
beta-zeacarotene
bilberry
bioflavonoids
black currant
blackberry
Blakeslea trispora
blueberry
broccoli
calamari oil
cantaloupe
capsanthin
Carnosine
carotene (unspecified)
carrot
Celosia
chickweed
Chinese Ligustrum berry
chrysanthemum
citicoline
cocklebur
cod liver oil
cornflower
Cornus
crocetin
crocin
Crypthecodinium
cryptoxanthin
currant
cyanidin
d-alpha tocopherol
DHA (docosahexaenoic acid)
docosahexaenoic Acid
Dunaliella
Dunaliella salina
egg
eicosapentaenoic acid
EPA (eicosapentaenoic acid)
ergothioneine
Eyebright
Fagopyrum
fat liver oil
fatty acids
fibroblast growth factor
fish
fish oil
flavoglycosides
flavonoids
flavonols
fruit
fruit and vegetable blend (proprietary)
Gac
gamma-carotene
ginkgo flavone glycoside
Glutathione
goji berry
gooseberry
Haematococcus pluvialis
haliotis
herbal blend (proprietary)
huckleberry
hyaluronic acid
Idebenone
kale
L-carnosine
L-taurine
Ligustrum
lipids
lutein
Lycium
marigold
Marine fat
Marine lipid
Melatonin
Mineral ascorbate
mixed carotenoids
Morus
Mulberry
N-Acetyl Carnosine
Oligomeric proanthocyanidins
omega-3 fatty acids
orange
Phaffia rhodozyma
pine bark
Polygonum
polyphenols
polyunsaturated fat
proanthocyanidins
procyanidol
pumpkin
Pycnogenol
riboflavin (vitamin B2)
rose
rue
rutin
saffron
Salmon Oil
Schizochytrium
Schizochytrium Oil
Spanish Needle
spinach
Tagetes
Taurine
Tea
trace minerals
Triphala
Troxerutin
vegetable and fruit blend (proprietary)
vitamin A
vitamin B
vitamin C
vitamin E
Xanthophyll
Zeaxanthin
Zinc