They found that the two proteins demonstrated chelating activity, meaning that they removed heavy metals from the body. In addition, when the proteins were hydrolyzed with pepsin-pancratin, they also demonstrated antioxidant and antihypertensive activity. "With the research we have [discovered] the essence of the legume, and identified the nutritional components such as carbohydrates, starch, proteins, fats, phenolic compounds that have related antioxidant effects," lead researcher Gloria Davila Ortiz said.