Supersize vs Superskinny

At just 6 stone 10lbs, 19-year-old Tatiana Moxey is extremely underweight and desperate for people to stop asking her if she's got an eating disorder. Weighing in at 23½ stone, jazz singer Sandra Andrew is a late-night food lover, enjoying home-cooked West Indian food through the day before feasting on junk food all night long. In the feeding clinic, under the supervision of Dr Christian Jessen, Tatiana and Sandra take part in an extreme diet swap to fatten up skinny Tatiana and slim down overweight Sandra. Meanwhile, size 14 journalist Anna Richardson immerses herself into the world of serial dieters and attempts to drop a dress size or two by following their faddy diets and lifestyle regimes. This week she looks behind the glamorous façade of modelling and exposes the body-abusing methods some models use to stay skinny as she embarks on an extreme apple-only 'model' diet. And it's no wonder we're obsessed with the size of our bottoms: Britain has the biggest bums in Europe; so Gillian McKeith is on a nationwide campaign to reduce the size of our rears. And with the help of 101 women, the latest treatments, hi-tech gadgets and machinery that claim to achieve a perfect rear are put through their paces. This week a group of Nottinghamshire lasses are lassoed to horse-riding simulators to gee up their chances of success. And if you wise up to calorie content you can still indulge without the bulge. Gillian McKeith heads to Billingsgate Market to find out if the fishmongers of London know a high-calorie breakfast when they see one.

Fussy eaters put up a food fight in the feeding clinic as Superskinny Yasmin Smith is forced to swallow a gargantuan diet of snack foods and diet drinks, while Supersize Darryl Weston weighing in at a whopping 33 stone and one pound suffers on Yasmin's lactose, wheat, sugar and fat free diet. Dr Christian Jessen referees the match. Journalist Anna Richardson takes the nip and tuck route to slimming by investigating the world of cosmetic treatments, but she meets with unforeseen complications during the procedure. Gillian McKeith is sent to Coventry as part of her nationwide campaign to turn bountiful bottoms into bums of steel. This week can the personal services of a gym bunny reduce their rears? And there's no need to battle the bulge if you know the calories of your favourite foods. With Cornish pasties, chicken salad and ham rolls on offer, do the market traders of St Albans know a high calorie lunch when they see one?

This week Dr Christian Jessen tackles the eating habits of Amy-Jo, a superskinny undereater, who is due to spend five days in the 'feeding clinic' with 38½-stone Andy. The participants' attitudes towards food couldn't be more different, but they are both putting their health in danger. Amy-Jo may look perfect on the outside but her extreme exercise regime and diet, which restricts carbs, could lead to her body crumbling inside. To shock her into a new way of eating, she must gorge on the gigantic meals and colossal snacks of the biggest supersize of the series. Meanwhile Andy must learn to survive on the limited calorie intake of Amy-Jo. The aim is for them both to learn how they are affecting their bodies Journalist Anna Richardson tries another extreme diet, taking the star-studded route to dropping a dress size: living on tiny jars of baby food. She also meets former Liberty X star Michelle Scott-Lee, who spills the beans on the pressures for celebrities to be thin. Gillian McKeith has a shock in store for a team of large-bummed female rugby players from York as she continues her quest to reduce the nation's rears. Gillian also tests the knowledge of a bunch of London taxi drivers. With cheesy jackets, ploughman's and scampi and fries on the canteen menu, can they recognise a high calorie option when they see one?

Weighing in at just 6 stone 8 pounds is superskinny working mum Gillian. The 24-year-old Inverness nurse is so busy caring for others she's forgotten how to look after herself and her weight has plummeted. Her polar opposite is another nurse, 26-stone self-confessed foodie Philippa, whose typical daily supersize menu includes a generous breakfast, followed by burger and fries, Yorkshire pudding and shepherd's pie. Both women get shocking wake-up calls: Gillian discovers the devastating effects her diet has had on her body and Philippa comes face to face with the consequences of a lifetime of overeating when she meets Lisa, a woman about to undergo life-threatening weight-loss surgery. Meanwhile, Anna Richardson travels to LA to investigate the continuing obsession with thinness. Back in the UK, she launches her very own Flab Fighters club and teaches a group of serial failed dieters from Newport how to indulge in their favourite treats and still lose weight.

Checking into the feeding clinic is marathon-running, superskinny Kim Fawke. Following a stressful divorce, her weight has plummeted to just over six stone. In her race to get her relationship with food back on track, she's joined by supersized scoffer and takeaway queen, 23 1/2 stone Trudy Alexander. Meanwhile, Anna and her Flab Fighters club swap gorging on cheddar for a hike in the Cheddar Gorge. And four young women in the grip of the eating disorder anorexia nervosa reveal their extreme eating habits, and are forced to discuss the causes, symptoms and anxieties around their distorted relationship with food.

Featherweight father-of-two Colin Hunt barely tips the scales at nine stone by living on chocolate and little else. Joining him on the five-day diet swap is a supersizer twice his weight, Tracey Hibbert, who binges on bread. Her post-baby weight has rocketed to 18 and a half stone and she is desperate to lose the pounds. Meanwhile, the Flab Fighters weigh in before heading for the hills for a dog-walking session. Will they bank their calories or binge on a barrel of biscuits? And in the home of size zero, Anna Richardson discovers where the overweight go to in LA. At a fat-fighting farm she goes for the burn with an extreme workout and meets the residents of Club Bounce, the dating disco for larger lovelies.

It's fireworks in the feeding clinic as 24 stone call centre agent Julie meets superskinny caffeine addict Jade. Jade weighs just five and half stone, and is desperate to regain her pre-pregnancy size for the sake of her young son. While Jade barely eats a thing, Julie, whose lack of confidence is stopping her from following her dream to be a schoolteacher, binges on huge platefuls of home cooked food, from massive cream filled curries to cheesy topped shepherds' pies. Dr Christian pushes the diet swappers to look beyond what's on their plates to explore the psychological triggers that lead to their dangerous diets. But Julie goes into meltdown when she's accused of lying about what she eats by Jade. In 'Postcards from America', a new strand of hard-hitting short films featuring morbidly obese Americans, 37 stone Alaina Morgan from Santa Rosa, California, makes a plea to Julie to lose weight before it's too late. Presenter and serial dieter Anna Richardson is two stones lighter than when she two years ago, but admits that she continues to be obsessed with getting the perfect body. In this film she investigates the very latest diet products and exercise fads. The show also takes a glimpse into the lives of three women and one man in the grip of the mental illness anorexia nervosa, following their progress over the series as they explore the causes of their condition under the guidance of eating disorder specialist Dr Peter Rowan.

Emotions run high in the feeding clinic as Dr Christian Jessen pushes calorie-counter Lucy Lee and buffet-binger Leighton Davies to the limit. Lucy weighs in at just under eight stone. She became addicted to dieting after shaking off her post pregnancy weight, and is terrified she'll end up too ill to care for her child. Trying to wolf down Leighton's gigantic portions of take away food brings all of her anxieties rushing back to the surface. Twenty three and a half stone Leighton breaks down when he receives a video message from the morbidly obese Edward Ledesema in Los Angeles, urging Leighton to wake up to the true dangers of his deadly diet. Anna Richardson continues her investigation into getting the perfect body. Desperate for smaller, firmer looking breasts, she meets a top glamour model who gives her some secret tips of the trade. The show also takes a glimpse into the lives of three women and one man in the grip of the mental illness anorexia nervosa. This time the quartet go to supermarket shopping for a lunch consisting of the high calorie ingredients they would normally avoid. But this proves a step too far for Ashley.

The new series starts with tears and tantrums as 21-stone Louise Hayes swaps with Josh Evan, whose diet barely features a proper meal. Louise is determined to get through the swap as deep down she's terrified her five-year-old son is picking up her supersize habits and will end up as big as her. She gets a personal message from America, from 41-stone Texan Karen Ferguson, who is so disabled by her weight that she's been forced to move into a care home. Louise is also flown out to America to witness first hand the horrors of being super-obese.

In the feeding clinic, supersize Amy Green, who tips the scales at a staggering twenty-stone plus, swaps with superskinny Ami Walsh, who only weighs seven stone ten . Twenty-one-year old comfort eater Amy gorges on enough food for three women and is terrified that she's going to pass on her poor eating habits to her baby daughter. Meanwhile 18-year-old Ami is always too busy to eat, and her poor diet has left her lacking in energy and confidence. It's an emotional week for both women, who are desperate to turn their eating habits around. Also, throughout this series, the show follows the ongoing story of women with eating disorders. This time, dietician Ursula Philpot urges the group to face their fear of foods head on in the supermarket.

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.

Dr Christian flies out to Evansville, Indiana, officially America's 'Fattest City', where 38% of the population is obese. Experts predict that by 2020 a third of adults in the UK will be obese. But in America this milestone has already been reached. He meets a woman who lost her foot to obesity-related diabetes, and visits a funeral home where the coffins are the size of hot tubs! In the Feeding Clinic, Supersize and Superskinny go on a shocking diet swap. But before they swap diets, Christian gives his Supersizer a terrifying glimpse into the future by sending them to the US, to spend time with somebody whose obesity has ruined their life. The new series also examines a variety of eating disorders as six men and women reveal their very personal stories. In this episode, 18-year-old it's Ellie Lambert, whose anorexia was triggered by a jaw operation that prevented her from eating.

Foodaholic Rob Gillett goes head to head with foodphobic Hayley Payne in the Feeding Clinic. And Dr Christian goes for a ride on a supersize ambulance in America's fattest town. Rob Gillett's obsession with donuts and cream cakes has seen him eat his way to an enormous 35 stone 10 pounds. While on the other end of the scale, for busy-bee Hayley food isn't a priority - which has left her weighing in at just 6 stone 12 pounds. And the warning signs of bulimia are revealed through the eyes of 20-year-old Lucy Glover, who regularly binges and purges on a staggering 8000 calories at a time.

In the Feeding Clinic comfort eater Hugh meets Lynsey, who has a fear of choking. And fashion student Laura reveals how an eating disorder has left her addicted to exercise and surviving on just 600 calories a day.

Dr Christian visits McAllen's mortuary, which is having to be supersized to cope with wider doorways and autopsy tables. In the feeding clinic, LJ Marley, a takeaway addict who tips the scales at 24 stone, with a 59 inch waist, swaps diets with Katie Reeve, whose childlike portions see her weigh in at a paltry 6st 11lb. LJ visits the US for some shock therapy, being forced to face up to the damage his eating habits could be doing to his body. And Emma Woolf reveals how she developed anorexia and lost half her body weight after a break-up while a student at Oxford.

In the feeding clinic this time Joanne Leadley goes head to head with Ross Clarke from Cardiff. Ross is a meal dodger who never finds time to eat, while 41-year-old Joanne is a giant-portion gorger. Their swap is packed with drama, tantrums and tears. Dr Christian shows Ross the damage his diet is doing to his body and sends Jo to Georgia, America, to meet a woman whose life has been destroyed by overeating. Dr Christian visits America's fattest town, where he meets doctors who treat a huge variety of obesity-related illnesses and patients who have lost toes, limbs and even their eyesight. Recovering anorexic and journalist Emma Woolf explores whether anorexia is inherited.

Forty-two- year-old super snacker Julie Menzies swaps diets with 24-year-old fussy eater Zoe Hughes-Blinston in an emotional encounter. Dr Christian discovers how the funeral parlour in America's fattest town copes with bigger and bigger bodies. And journalist Emma Woolf investigates the little known world of male eating disorders.