Khòaⁿ Bi-tá-mín A ê 原本

'''Bi-tá-mín A''' sī chi̍t cho͘ [[pûi-chit]] ē-iûⁿ (''fat-soluble'') ê bi-tá-mín, tang-tiong thang hun chhut chē chióng [[le-tín-lūi]] (''retinoids''), hâm [[le-tí-nó͘-luh]] (''retinol''), [[le-tín-ná-luh]] (''retinal''), [[le-tí-nó͘-ín e-sú-té-luh]] (''retinyl esters''). Bi-tá-mín A koan-sia̍p tio̍h [[bián-e̍k]] ki-koan, sī-le̍k, seⁿ-thòaⁿ, kiam sè-pau thong-sìn.

Lâng chia̍h-mi̍h tit--tio̍h ê bi-tá-mín A hun nn̄g khoán: chiâⁿ-iūⁿ (''preformed'') bi-tá-mín A kap goân-bi-tá-mín A nĭn-jín-chit (''provitamin A carotenoids''). Chia̍h-si̍t tang-tiong ê chiâⁿ-iūⁿ bi-tá-mín A lâi-goân ū koaⁿ, hî-iû, leng-chè-phín téng-téng. Nā goân-bi-tá-mín A lâi-goân ū chheⁿ, n̂g hio̍h chhài-se, tho-má-toh chè-phín, kóe-chí téng-téng, [[nĭn-jín]] mā tī ki-tiong.

== Chham-chiàu ==
* "[https://ods.od.nih.gov/factsheets/VitaminA-HealthProfessional/ Vitamin A - Health Professional]". ''NIH Office of Dietary Supplements''.

[[Category:Bi-tá-mín]]