Maanvi Singh, NPR (NPR.com) — They switched diets. Twenty South Africans gave up their corn porridge and vegetable stews for burgers and fries. And 20 Pittsburghians sacrificed fast food staples for the low-fat, high-fiber fare that South Africans traditionally eat. Dr. Stephen O’Keefe, a professor of nutrition at the University of Pittsburgh School of […]
