vitamin A

Eyes need it

Vitamin A is an essential nutrient found in foods like liver, eggs, and orange vegetables.

It supports vision, immune function, and skin health.

Deficiency causes night blindness and other problems; excess can be toxic.

Carrots are rich in vitamin A. (Capitalized Vitamin A appears at the beginning of sentences but refers to the same nutrient.)

carotenoids

beta-carotene

Orange plant pigment

pumpkin · spinach · kale · mangoes · papayas · apricots · lutein · lycopene · phytonutrients · leafy greens

supplement

cod liver oil

Fish-derived nutrient liquid

fortification · capsules · drops · toxicity · liver damage · overdose · fat-soluble · absorption · dietary intake

retinoids

tretinoin

Topical retinoid medication

wrinkles · topical · prescription · photosensitivity · cod liver oil · preformed

vision

eyesight

Visual perception capacity

rods · cones · visual acuity · ophthalmology · optometry · macula · ocular · adaptation · peripheral vision · color perception

deficiency

night blindness

Impaired vision in darkness

malnutrition · blindness · developing countries · supplementation · fortification · mortality · measles

growth

tissue repair

Biological wound healing process

fetal development · mucous membranes · organogenesis · morphogenesis

Categories
Opposites
solubility type

vitamin Avitamin C

Essential water-soluble antioxidant

vitamin B12 · vitamin B complex · thiamine · riboflavin · niacin

biological function

vitamin Avitamin D

Calcium absorption enabler

vitamin K · vitamin B12 · calcium · iron

nutritional deficiency vs. excess

vitamin Avitamin A deficiency

Inadequate retinol levels

night blindness

Phrases
Family

vitamin, vitamins

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G