English edit

Etymology edit

non- +‎ vitamin

Adjective edit

nonvitamin (not comparable)

  1. Not a vitamin.
    • 2007 January 16, Dan Hurley, “Diet Supplements and Safety: Some Disquieting Data”, in New York Times[1]:
      In April 2004, the Food and Drug Administration said it had received 260 reports of deaths associated with herbs and other nonvitamin, nonmineral supplements since 1989.

Noun edit

nonvitamin (plural nonvitamins)

  1. A substance that is not a vitamin.