A recent report from personal-finance website WalletHub has ranked the most obese cities in the U.S. As noted by WalletHub, almost 42 percent of Americans are classified as obese. "Unfortunately, the extra pounds have inflated the costs of obesity-related medical treatment to approximately $190.2 billion a year and annual productivity losses due to work absenteeism to around $4.3 billion," the report said. WalletHub said Little Rock, Arkansas, ranks as the most overweight U.S. city, with