Supersize vs. Superskinny

39 year old Tracey from Tonbridge in Kent spent 22 years trying to get pregnant and the emotional anxiety led to her weight ballooning to over 18 stone.

41 year old Trudy from Bedfordshire runs her own business and is a mum of three. Kim is a fitness fanatic who runs 45 miles a week but eats like a sparrow.

Phillipa is a 48 year old ‘foodie’ from Sheffield who just can’t say no. Gillian is a 24 year old student nurse from Inverness and single mum of two.

37-year-old Martin works on the night shift as a Fire Engineer for London Underground. Christine is a 21 year old student who lives at home in Manchester with her mum and younger sister.

27 year old Marketing Consultant Ameer is looking for love and has never been in a relationship. 18 year old Georgetta has been modelling and dancing since she was a baby.

Football fan Wayne works as a Customer Services Advisor. He is desperate to lose weight so he can play his favourite sport. Martin is a 32 year works as a photographer,PR manager and model.

Keith is a 33 year old dance floor DJ who is desperate for a date. 25 year old BT Manager Tiffany despises ‘bad’ foods. She has a strong desire to be healthy but has a very small appetite.

22 year old mum and part time call centre worker Heather is desperate to curb her enormous appetite. 19 year old Charlotte's dream is to be worshipped for being beautiful.

Dr Christian Jessen and Anna Richardson return for a second run of the diet magazine show which tackles the nation’s relationship with food.