PROVIDENCE, R.I.--(BUSINESS WIRE)--United Natural Foods, Inc. (Nasdaq: UNFI) (the "Company" or "UNFI") today reported financial results for the first quarter of fiscal 2015 ended November 1, 2014. First Quarter Fiscal 2015 Highlights Net sales increased 24.4% to $1.99 billion compared to $1.60 billion for the same period last fiscal year Operating income increased 21.6% to $58.4 million for the first quarter of fiscal 2015 compared to $48.0 million for the same period last fiscal year Diluted E