Yum Brands, owner of KFC, Pizza Hut and Taco Bell restaurants, has reported a dip in fourth quarter profits as a foodsafety scare hurt its sales inChina.
The issue came into sharp relief in 2011, when China's food-safety inspectors discovered in pork products from a Shuanghui subsidiary the chemical clenbuterol, which speeds muscle growth in pigs but can cause headache, nausea and an irregular heartbeat when consumed by humans.