વિટામિન અગ્રણીઓ, એક પદાર્થ જે પ્રાણીની પેશીઓમાં વિટામિનમાં રૂપાંતરિત થાય છે,

provitamin's Usage Examples:

contains carotenoids, such as provitamin A beta-carotene, lutein and zeaxanthin.

Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, and several provitamin A carotenoids (most notably beta-carotene).

is a group of unsaturated nutritional organic compounds that includes retinol, retinal, and several provitamin A carotenoids (most notably beta-carotene).

zoosterol that functions in the serum as a cholesterol precursor, and is photochemically converted to vitamin D3 in the skin, therefore functioning as provitamin-D3.

The three forms of vitamin A include retinols, beta-carotenes, and provitamin A carotenoids.

retinol, retinal, and several provitamin A carotenoids (most notably beta-carotene).

all-trans-retinyl-esters, as well as all-trans-beta-carotene and other provitamin A carotenoids), vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin.

The fruit is high in vitamin C and a source of provitamin A.

Included as nutritional constituents are provitamin A carotenoids.

group of unsaturated nutritional organic compounds that includes retinol, retinal, and several provitamin A carotenoids (most notably beta-carotene).

is the alcohol analog of pantothenic acid (vitamin B5), and is thus a provitamin of B5.

NADPH, H+, and O2, whereas its 4 products are cholesta-5,7-dien-3β-ol (provitamin D3), NAD+, NADP+, and H2O.

contain up to 21% oil, are rich in tocopherol (Vitamin E), carotinoides (provitamin A) and micronutrients.