Food prices continue familiar pattern of volatility

After a 0.4% drop in April, grocery inflation ticked up again 0.3% in May. On a year-over-year (YoY) basis, food-at-home prices are up 2.2%, according to the latest Consumer Price Index data from the U.S. Bureau of Labor Statistics (BLS). The overall CPI edged a scant 0.1% higher last month after a 0.2% bump in April.