Food labeling pact aims to cut food waste

Large global companies, including Wal-Mart Stores, Tesco, Kellogg, Nestle, Carrefour and Unilever, supported a "call to action" sponsored by the Consumer Goods Forum and unveiled on the sidelines of the United Nations General Assembly.

The initiative is designed to eliminate multiple labels on food such as manufacturing and display dates that can baffle shoppers and lead to unnecessary food waste.

"We as consumers are a bit confused. Because food is not necessarily expensive, when in doubt, people throw it away," said Ignacio Gavilan, director of sustainability for the Consumer Goods Forum. "So what we basically need is absolute clarity."

Under the initiative, perishable items such as smoked salmon would have a "use by" date, while other products such as pasta or sugar would have a "best by" date, Gavilan said.

Other information -- such as manufacturing dates or batch numbers -- could go on barcode that would not be legible to consumers.

There are "two types of labels but there should be only one on display," he said.

An estimated 1.3 billion tons of food worldwide is thrown out, with the average American household throwing out $1,500 per year.