It's war in the feeding clinic as Dawn goes into meltdown when calorie-counting Charlene doesn't eat her mountainous meals. Meat addict 47-year-old Dawn Grant tips the scales at a whopping eighteen stone four lbs. Over a year Dawn wolfs down 208 whole chickens, 1716 rashers of bacon, 3800 sausages, 36,000 slices of deli meat, and 36 kilos of minced beef. Charlene Sequiera weighs less than six stone. Her diet is so restrictive that she lacks energy and is constantly sleeping. This is seriously affecting her life at uni. Charlene desperately needs to eat more, but it's one excuse after another until Dr Christian gives her a stern dressing down. Dietician Ursula Philpot challenges the regular group of eating-disordered women to have 3-D plaster casts of their torsos made to face the reality of what their dangerous eating habits have done to their bodies.

• Liza Tarbuck
• Anna Ryder Richardson
• Gillian McKeith