Carrie Clyne's last job was in an office that feasted on a steady supply of junk food. Donuts in the mornings and cupcakes for staffers' birthdays were the familiar routine. But in January, when she took a position with nonprofit organization Physicians Committee for Responsible Medicine, she was pleasantly surprised by her new employer's decidedly different attitude toward food. PCRM has an office policy mandating that only vegan food may be eaten in its office. The organization, which advocates for healthy eating, preventive medicine and ethical clinical research, is so committed to the rule that it notifies prospective employees of the policy when they receive an offer letter for a job.