Frae Wikipedia, the free beuk o knawledge
A
vitamin
is an
organic compoond
an a vital
nutrient
that an
organism
requires in leemitit amoonts.
[1]
- ↑
Lieberman, S and Bruning, N (1990). The Real Vitamin & Mineral Book. NY: Avery Group, 3,
ISBN 0-89529-769-8