Narrator: This is Science Today. There's more research supporting the healthy benefits of the soybean - which has long been regarded for its anti-cancer and its heart-healthy effects. At the University of California, Berkeley, researcher Ben de Lumen helped discover that a protein in soy called lunasin prevents skin tumors from developing in mice. De Lumen and his colleagues previously found that lunasin had a significant anti-cancer effect in humans.
De Lumen: Soybean is almost a complete food. It has carbohydrates, it has protein and it has lipids or oil. And right now in this country only about five percent of the soybean production in this country is used for human food - but the figure is increasing.
Narrator: Still, de Lumen says it may take a while for people to fully catch on to eating soy products.
De Lumen: And so, I think the challenge to people who are promoting soybean as a food product would have to make it more attractive to people who are not used to eating it.
Narrator: For Science Today, I'm Larissa Branin.