Wal-Mart pledges to sell only cage-free eggs by 2025

Wal-Mart is the nation's largest food retailer, and it recently made a pledge anticipated to greatly impact how chickens are raised and kept.

The chain has pledged to sell only cage-free eggs by 2025.

According to the Humane Society, hen cages typically have a base measurement no larger than a standard piece of copy paper.

The cramped quarters are said to cause the animals mental distress, reports CNBC.

Walmart is one of many influential food-related corporations to join in putting an end to the practice.

McDonald's, Nestle, and General Mills are among the other large businesses with cage-free egg transition timelines in place.

At this time, a mere 6% of hens raised in the US live in open environments.

Related: Also learn how you can save more at Wal-Mart: