First in a six-part documentary series, which follows personal dieting stories, narrated by Arabella Weir.
Tracey, Sean and Terri all want to lose weight, but it's not that easy. Tracey faces temptation every day working in the fast-food trade; Sean has never been on a diet before; and Terri is on a food-replacement scheme.
See today's choices.
(The season continues tonight on BBC2 with Fat Files at 9.30pm)
New You: page 26