Jess, 19, is studying nutrition at university. She lost 5 stone with Slimming World and also became one of their consultants, running her own group. Ethnic background: White British.

Amy, 16, has been trying to lose weight. She thinks she gained weight since she started college. Ethnic background: White British.

Lisa, 17, describes herself as slim. She worries about her father's health since he was diagnosed with type 2 diabetes. Ethnic background: White British.

Rebecca, 18, is a full time student and is in recovery from anorexia. She is currently pregnant with her first baby and says pregnancy has improved her body image. Ethnic background: White British.

Severe bullying at school led Sam to frequently hide in the boys toilets at school and comfort ate to cope with the depression and anxiety he felt at the time. He developed bulimia. Sam is the founder of the website 'Men Get Eating Disorders Too' aim to raise awareness of the plight of young men facing an eating disorder. Ethnic background: White British.

Becca works part-time as a retail assistant. In the past few months she has joined WeightWatchers and has lost one stone. Her main motivation to lose weight is her health. She is concerned about weight related conditions such as diabetes and heart problems. Ethnic background: White British.

Jezzie, 16, developed anorexia when she started secondary school. She has been in recovery, but has recently started restricting her food again. She has also been having panic attacks and feelings of depression.

Carrie, 17 is a full-time student and lives with her mother and brother. Her family moved to the UK from Africa three years ago. In the UK she started to put on weight due to changes in diet and less opportunity to do exercise on a regular basis but also because of the experience of starting life in a new country. Ethnic background: White British.

Sky, 17, keeps a close eye on her weight and feels she isn't as fit as she used to be since she started college and has less time for exercise. Her mum has recently lost a lot of weight. In year 10, Sky's friend developed anorexia. Ethnic background: White British.

Vicki, 18, has mixed feelings about her size, and says she's happy in some ways, but not in others. She loves clubbing and dancing but feels embarrassed to dance because of her size. She says people often underestimate her because of her size. Ethnic background: White British.