Supermarket giant Whole Foods is trying to appeal to the gentler side of its carnivorous clientele with the recent announcement that it will be placing "animal compassionate" labels on meats in which the animals were raised in a humane environment before going to the slaughter.

In media coverage of the new labeling system, Whole Foods has come up against skeptics who see it as a marketing tool and, more acutely, a poor one. There are no industry or government standards for ...