provitamin

noun

pro·​vi·​ta·​min (ˌ)prō-ˈvī-tə-mən 

: a precursor of a vitamin convertible into the vitamin in an organism

Examples of provitamin in a Sentence

Recent Examples on the Web

Supports Immune Function Carrots contain provitamin A (beta-carotene) and vitamin C, two essential vitamins for a healthy immune system.13 While more research is needed, one study found that carrot juice intake produced an immune response in the short term. —Barbie Cervoni, Verywell Health, 7 Nov. 2025

RDAs come in micrograms of retinol activity equivalents because different retinol and provitamin A carotenoids have different bioactivities and result in different levels of retinol in the body. —Bruce Y. Lee, Forbes.com, 5 Apr. 2025

Kale is rich in nutrients that may enhance immune function, such as vitamin C, manganese, magnesium, folate, and provitamin A carotenoids.4 Kale is high in folate, a nutrient that supports the production of T-cells. —Jillian Kubala, Health, 16 Dec. 2024

Word History

First Known Use

1927, in the meaning defined above

Rhymes for provitamin

• vitamin

Medical Definition

provitamin

noun

pro·​vi·​ta·​min (ˈ)prō-ˈvīt-ə-mən 

: a precursor of a vitamin convertible into the vitamin in an organism

ergosterol is a provitamin of vitamin D