W Network is spending Jan. 1 helping women get started on their New Year’s resolution to lose weight after the holidays with a 14-hour marathon of programming called Diet D-Day. In addition to Kirstie Alley’s series Fat Actress and a special diet product-related ep of The Shopping Bags, the blitz features a new addition to W’s lineup. British import You Are What You Eat is a half-hour doc-style show in which a holistic nutritionist confronts people with exactly what their bad eating habits are doing to their health – leading to all the drama, emotion, conflict and joy reality TV offers. The first three eps begin at 4:30 p.m. with the next batch of three following at 7 p.m. On Jan. 3, the show settles into its regular slot Mondays to Fridays at 4:30 p.m. The target audience for Diet D-Day is women 25-54 and Jell-O Light has signed on as the leading sponsor.