Laxative makers are targetting their advertising at low-carb dieters, who are notoriously irregular:
GlaxoSmithKline's new ad campaign for Citrucel caplets offers a "zero-carb solution to a low-carb problem."
Proctor and Gamble fired back with ads that promise that Metamucil allows users to "Stay regular. The zero net carb way."
(via Fark)