About.com: Health - The annual Walk for Farm Animals will take place in cities throughout the USA and Canada in September and October.  This charity walk series supports Farm Sanctuary, an organization that "works to protect farm animals from cruelty, inspire change in the way society views and treats farm animals, and promote compassionate vegan living."

The Biggest Loser's Bob Harper is the celebrity spokesperson for the Walk for Farm Animals.  He supports it because he is a vegan and he grew up on a family farm where the animals were treated much more humanely than on a modern factory farm. He credits a