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

The Biggest Loser is an Australian reality television show, based on the original American version of the same name. It is produced by Crackerjack Productions and screened on Network Ten. It was hosted by Ajay Rochester from 2006–2009 and introduced former Olympian Hayley Lewis as its host in 2010. The show first debuted on 13 February 2006, followed by a second season on 4 February 2007 which introduced Michelle Bridges, Shannan Ponton and Steve Willis. The third season began airing on 3 February 2008. A fourth season, which features couples competing as teams, started airing on 1 February 2009. A fifth season, which aired on 31 January 2010, featuring former Olympic swimmer Hayley Lewis as the new host, and in 2011 the show introduced the new trainer Tiffiny Hall.

The Biggest Loser was a British reality television show that began airing on Living TV from 2005 to 2006, before moving to ITV in 2009 and finished in 2012. Most recently hosted by Davina McCall, the show is a spin-off of the American reality television show of the same name. The show originally featured Angie Dowds and Mark Bailey as the personal trainers, with Richard Callender replacing Bailey from series 3. After Dowds' death, she was replaced by Charlotte Ord and Rob "The Killer" Edmond for the fifth series. at Beachy Head. The first two series of the show were hosted by Vicki Butler-Henderson on Living TV, the third series was hosted by Kate Garraway and Davina McCall began presenting the show in its fourth series on ITV. In September 2012, it was announced that the show would be cancelled, with no further series planned.

De Afvallers is a Dutch reality television series which first premiered on SBS 6. The series is a spin-off of the American reality television series The Biggest Loser and the SBS 6 weight-loss series Big Diet, which was canceled after two seasons due to low ratings.

Popular reality fare about overweight people competing to drop pounds. Divided initially into teams, the contestants are aided (and bullied) by trainers and must participate in physical reward challenges. At the end of each episode, there's a weigh-in that helps determine who is sent packing.

Contestants facing significant weight struggles embark on an intense physical and emotional journey where demanding workouts, weekly challenges, and team support push them past their limits as they fight for a healthier, happier life.

Biggest Loser Jeetega is an Indian reality series based on America's The Biggest Loser. It aired on the Sahara One channel and was very popular.

Television's most popular trainers prove viewers can achieve the same results as THE BIGGEST LOSER contestants by doing these three different cardio workouts plus warm up and cool down segments. Viewers will get a well-rounded workout consisting of a 10-minute boot camp with Bob, a 20-minute basic training led by Jillian, and a 10-minute routine with Kim.

The Biggest Loser Asia is a reality television series that began broadcasting on the Hallmark Channel in Asia on November 24, 2009. The show is a spin-off of the American programme The Biggest Loser, in which overweight and obese contestants attempt to lose weight for a large sum of money. David Gurnani emerged as the champion of the first season, winning US$100,000 and Renault sponsored by TC Euro Cars. The first season was recorded at the A Famosa Resort in Malacca, Malaysia during late 2009. It is hosted by Malaysian television personality, Sarimah Ibrahim. The trainers are Kristy Curtis, who is the Group Exercise Manager from Fitness First Australia and Dave Nuku, who is the Fitness First Asia’s Regional Fitness Manager will train the red and blue team, respectively.

The Biggest Loser Germany started in 2009 on ProSieben. The following seasons switched channels inside the ProSiebenSat.1 network, season two airing on kabel eins and seasons three and four on Sat.1.

The Biggest Loser South Africa is a South African reality television show which first aired from 7 January 2008 to 14 April 2008 on e.tv. The show is a spin-off of the American reality television show The Biggest Loser. The South African version features Jasmyn Asvat as the host with trainers Bruce Claasen and Lisa Raleigh. The premise of the show is similar to other international versions following the format of "temptation", "reward challenge", "weigh-in" and "elimination". In addition to the 15 regular episodes, there are an additional 10 episodes of The Biggest Loser Extra which focuses on the eliminated contestants.

This includes a power-packed workout inspired by the hit TV series. Included is a 6 week program for maximum weight loss, with Level 1, 2, & 3 workouts.

The Biggest Loser: Special Edition is a special edition of the NBC reality television series The Biggest Loser. The special edition debuted on January 4, 2006.

The Biggest Loser: Pinoy Edition is reality competition airing on ABS-CBN. It is based on The Biggest Loser franchise that first became popular in the United States.

In the pre "weigh-in" workouts on NBC’s hit show, "THE BIGGEST LOSER,” you’ve seen contestants push themselves to the limit to reach their weight-loss goals – and now you can too! In this intense Last Chance Workout, trainer Jillian Michaels pulls out all the stops with three workouts that challenge your body to the maximum. But don’t worry, past contestants will be by your side every step of the way. With a unique blend of cardio and strength designed to boost your fat-burning potential, and the motivation to keep going, now’s your chance to step on the scale and lose more weight faster than ever!

Begin with Boot camp 1 and as you improve, add on Boot camps 2 and 3 for a powerful workout that challenges every muscle with dynamic moves designed to give those unwanted pounds the boot! WARM-UP (5 Minutes): Prepare your body for boot camp with athletic conditioning moves that get the heart pumping and the muscles warm. LEVEL 1 (Weeks 1 and 2) -Boot camp Level 1 (20 Minutes): Bob turns on the burn with upper- and lower-body strength intervals, then revs your metabolism with calorie-crushing cardio. LEVEL 2 (Weeks 3 and 4) - Boot camp Level 2 (15 Minutes): Pick up the pace and drop the pounds with Bob's innovative power moves that integrate fat-blasting bursts of cardio. LEVEL 3 (Weeks 5 and 6) - Boot camp Level 3 (10 Minutes): Challenge your balance and fine-tune your physique using bands and weights to further chisel your newfound muscle. COOL-DOWN (5 Minutes): Reward and energize your body with athletic and yoga-inspired stretches that soothe tight muscles and improve posture.

Just like the contestants on NBC's hit show, you too can rev up your fat-burning furnace and experience dramatic weight loss in less time. Join "The Biggest Loser" trainer, Bob, and show contestant winners and finalists for a 6-8 week program that beats the bulge one intensity level at a time.