Di-indolemethane (DIM) is a phytochemical derived from cruciferous vegetables such as cabbage, broccoli, Brussels sprouts, cauliflower, collards, and kale. Promotes estrogen metabolism to a form that has been shown to be anti-proliferative. Used in treating recurrent respiratory papillomatosis (RRP).

See also: indole-3-carbinol (I3C).