Bi-tá-mín D sī pûi-chit ē-iûⁿ (fat-soluble) ê bi-tá-mín chi̍t khoán, tī chi̍t kóa chia̍h-si̍t tang-tiong thian-jiân tī--leh. Lâng ê phoe-hu chiò ji̍t-thâu ê sî-chūn mā ū hoat-tō͘ chè-chō.
Chham-chiàu
- "Vitamin D - Health Professional". NIH Office of Dietary Supplements.