Investors see fat profits in US obesity epidemic By: CNBC.com News October 27, 2014 at 09:42 AM EDT With some 84 million people in the U.S. struggling with obesity, investing in obesity stocks has become a Wall Street trend. Read More >> Related Stocks: Chipotle Mexican Grill Coca-Cola Company GNC Holdings Inc Genl Mills McDonald's Corp Medifast Inc Piper Jaffray Companies Vitamin Shoppe Inc Vivus Inc Willis Towers Watson Public Ltd Zafgen Inc