Never before in America has so much retail square footage been devoted to selling food — and it is too much.

A massive build-out by retailers has left the country piled up with grocery shelves as consumers are shifting from big weekly shopping trips to more snacking and to-go meals. The mismatch has flattened retail sales and leaves the industry vulnerable to a wave of closures that some executives, bankers and industry experts think is coming soon.

Commercial square footage of retail food space per capita last year set a record, with 4.15 square feet of food retail per person, according to CoStar Group, a commercial real-estate firm, nearly 30 times the amount of space allocated to groceries at major chains in 1950.

To be sure, major grocery chains weren’t as numerous decades ago, with many Americans shopping for food at mom and pop stores.

Source: MarketWatch