Definition

Noun: A naturally occurring orange-red organic pigment and isomer of carotene, found abundantly in many dark green and dark yellow fruits and vegetables. It is a provitamin, meaning the human body can convert it into vitamin A (retinol), which is essential for vision, immune function, and skin health.

Usage and Examples

• As a nutrient/supplement:

  • Eating carrots is beneficial because they are rich in beta-carotene.
  • The doctor recommended a diet high in beta-carotene for better eye health.

• As a coloring agent:

  • The vibrant orange color of the juice comes from added beta-carotene.

Advanced Usage

• In scientific/medical contexts: Often discussed in studies concerning antioxidants, cancer prevention, and macular degeneration.
  • The research paper examined the bioavailability of beta-carotene from different food sources.

Variants and Related Words

• Carotene (noun): A general term for several orange plant pigments, of which beta-carotene is one specific type.
• Provitamin A (noun): A category of compounds, including beta-carotene, that the body converts into vitamin A.
• Antioxidant (noun): A substance that inhibits oxidation; beta-carotene is classified as a potent antioxidant.

Synonyms

• Provitamin A carotenoid
• Pro-retinol (less common)

Notes on Meaning

While "beta-carotene" specifically refers to one chemical isomer, in common usage it is often synonymous with the health benefits and color provided by this compound. It is distinct from other carotenoids like lycopene or alpha-carotene.

Noun

1. an isomer of carotene that is found in dark green and dark yellow fruits and vegetables