Inflation has yet to dent big food’s earnings

FOR YEARS nutritionists have advised Americans to steer clear of grocery shops’ central aisles and instead fill their trolleys from the outlying shelves. Fresh meat, dairy products, fresh fruit and vegetables often line supermarket walls; cans, boxes and other packages of less salubrious processed food are stacked in the middle. Some shoppers have heeded that advice: sales of canned soup have been lacklustre in recent times, even as those…