negative regulation of vitamin metabolic process +
nucleobase-containing small molecule catabolic process +
organic acid catabolic process +
positive regulation of vitamin metabolic process +
regulation of vitamin metabolic process +
thiocyanate catabolic process
urate catabolic process
urea catabolic process +
vitamin biosynthetic process +
vitamin catabolic process +
The chemical reactions and pathways resulting in the breakdown of a vitamin, one of a number of unrelated organic substances that occur in many foods in small amounts and that are necessary in trace amounts for the normal metabolic functioning of the body, carried out by individual cells.