Researchers at  North Carolina State University  say soy may increase the benefits of canine cancer therapy.

Genistein  -- a molecule in soy shown to be toxic to many cancer cells in humans --  was found to  kill canine lymphoid cells in a laboratory.

"Humans have been using soy in conjunction with traditional chemotherapy for some time as a chemo potentiator,"  Dr. Steven Suter , assistant professor of oncology at the university, says.

Researchers hope it will work for canines, too.