Ran an den Speck – Familien nehmen ab

Jessie Pavelka tries to help nine morbidly obese individuals shed more than half their bodyweight before it kills them.

The Biggest Loser features obese people competing to win a cash prize by losing the highest percentage of weight relative to their initial weight.

In this unique experiment, nine 21st century volunteers subject themselves to the weight loss diets and fitness regimes of previous generations. But have they bitten off less than they can chew?

One hundred contestants in top physical shape compete in a series of grueling challenges to claim the honor — and cash reward — as the last one standing.

Gladiators is a British television entertainment series, produced by LWT for ITV, and broadcast between 10 October 1992 and 1 January 2000. It is an adaptation of the American format American Gladiators. The success of the British series spawned further adaptations in Australia and Sweden. The series was revived in 2008, before again being cancelled in 2009. The series was originally presented by John Fashanu and Ulrika Jonsson, however, Fashanu was replaced by Jeremy Guscott in 1997. Guscott left the series in 1998, and subsequently, Fashanu returned for the final series in 1999. The series was refereed by John Anderson and the timekeepers over the show's run were Andrew Norgate, Derek Redmond and Eugene Gilkes. John Sachs was the show's commentator, and the series was accompanied by its own group of cheerleaders, known as G-Force. Despite being made by London Weekend Television, all episodes of Gladiators, International Gladiators, the second series of The Ashes and the first series of The Springbok Challenge were recorded at the National Indoor Arena in Birmingham. The first series of The Ashes and the second series of the The Springbok Challenge, however, were filmed on the sets of the Australian and South African versions of the shows respectively. The series also spawned a version for children, entitled Gladiators: Train 2 Win, which was broadcast on CITV between 1995 and 1998.

Transform your body in just 90 days with P90X, Tony Horton's groundbreaking extreme home fitness program. Built around the principle of Muscle Confusion™, the program combines strength training, bodyweight exercises, cardio, plyometrics, yoga, martial arts, stretching, and core conditioning to continually challenge the body and maximize results. Featuring twelve unique workouts and a structured 90-day schedule, P90X is designed to increase strength, improve endurance, build lean muscle, and reduce body fat without requiring a gym membership.

Celebrity Fit Club is a reality television series that follows eight overweight celebrities as they try to lose weight for charity. Split into two competing teams of four, each week teams are given different physical challenges, and weighed to see if they reached their target weights. They are monitored and supervised by a team that includes a nutritionist, a psychologist, and a physical trainer, the latter of which is former U.S. Marine Harvey Walden IV.

You Are What You Eat is a dieting programme aired in various forms between 2004 and 2007 on British broadcasting company Channel 4, and presented by Gillian McKeith. The fourth series was called You Are What You Eat: Gillian Moves In.

Celebrity Operation Transformation is an Irish health and fitness programme based on Operation Transformation

Follow morbidly obese individuals as they fight for a chance to live the life they have always wanted, both for themselves and for their loved ones. Reaching a combined weight of more than 6,000 pounds, and at an extreme breaking point, these individuals are turning to weight loss authority Dr. Now, and his team of specialists, to get life-changing bariatric surgery and acquire the tools they need to deal with emotional eating. Through intimate diary cams and confessionals, each episode highlights one person's comprehensive experience as they share intimate inner thoughts, emotional and physical struggles, and their ultimate journey to take back their lives.

They are two of the most stressful things in life - planning a wedding and losing weight. Ten overweight engaged couples will live together and battle for the wedding of their dreams over a three-month period. Every episode, the couples will face off in a big physical challenge, competing to win one element of their wedding - from the invitations, to the cake, to the rings. Whatever they win will be theirs to keep. Together, they will plan their weddings with the help of the nation's top wedding planners, they will take a vow to eat right and exercise, and world-class trainers and nutritionists will completely overhaul their bodies. At the end of each episode, the couples will step on the scale and be weighed together - the couple who lost the least amount of combined weight that week will be eliminated. In the end, one couple will win their fantasy wedding - a once-in-a-lifetime event - that America will attend.

People try to lose weight and get fit with the expert help of a personal dietician, fitness instructor and psychologist. As an added incentive, the participants' houses and fridges are fitted with webcams to catch them out if they slip back into bad habits.