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The Biggest Loser (American TV series)

American competition reality TV series


American competition reality TV series

FieldValue
imageBiggest Loser logo.jpg
creatorBen Silverman
Mark Koops
Dave Broome
presenterCaroline Rhea
Alison Sweeney
Bob Harper
starring = See below
narratedJ. D. Roth
Alison Sweeney
Bob Harper
theme_music_composerHeather Small
Peter-John Vettese
opentheme"Looking Good, Feeling Gorgeous" (season 1) by RuPaul
"Proud" (seasons 2–9) by Heather Small
"Brand New Book" (Season 12–13) by Train
None (seasons 10–11, 14–17), "TBA" (season 18)
composerJeff Lippencott
Mark T. Williams
Ah2 Music
Jason Bond
Darren Moss
countryUnited States
languageEnglish
num_seasons18
num_episodes256
executive_producerEden Gaha
runtime80–83 minutes (NBC)
60 minutes (USA Network)
company3Ball Entertainment
Eyeworks
Reveille Productions (2004–12)
Shine America (2012–16)
Endemol Shine North America (2020)
Twenty Five Seven Productions (2004–16)
Universal Television Alternative Studio (2020)
networkNBC
first_aired
last_aired
network2USA
first_aired2
last_aired2

Mark Koops Dave Broome Alison Sweeney Bob Harper Alison Sweeney Bob Harper

Peter-John Vettese "Proud" (seasons 2–9) by Heather Small "Brand New Book" (Season 12–13) by Train None (seasons 10–11, 14–17), "TBA" (season 18) Mark T. Williams Ah2 Music Jason Bond Darren Moss 60 minutes (USA Network) Eyeworks Reveille Productions (2004–12) Shine America (2012–16) Endemol Shine North America (2020) Twenty Five Seven Productions (2004–16) Universal Television Alternative Studio (2020)

The Biggest Loser is an American competition reality show that initially ran on NBC for 17 seasons from 2004 to 2016, returning in 2020for an 18th and final seasonon USA Network. The show features obese and overweight contestants competing to win a cash prize by losing the highest percentage of weight relative to their initial weight.

Premise

Each season of The Biggest Loser begins with a weigh-in to determine the contestants' starting weights, which serve as the baseline for determining the overall winner at the end of the 30-week competition.

Contestants are grouped into teams of three, with each team assigned its own t-shirt color. Contestants work with trainers, who (in conjunction with medical personnel retained by the show) are responsible for designing comprehensive workout and nutrition plans and teaching them to the contestants, who are individually responsible for implementing the principles taught. Depending on the season, a team may work with a specific trainer, or all trainers may work with all contestants.

During an episode, various challenges and temptations (see below) are featured. Winning a challenge affords special advantages, such as a weight advantage for the next weigh-in or full immunity from being voted off the show.

Each week culminates in a weigh-in to determine which team has lost the most weight for that week, using contestants’ percentages of total weight lost. The team with the lowest percentage lost during that week (known as “falling below the yellow line”, which refers to a line featured on a video screen showing the cutoff between safety and being at risk) will have one member voted off, unless the team consists of only one remaining member, in which case there is no vote. The vote is usually cast by the other teams, though some episodes feature one team making the decision alone. Some episodes feature a second, "red line"; if a contestant falls below the red line, the contestant is automatically eliminated with no vote. Other episodes allow the contestants to all receive immunity for the week if they successfully meet a goal at the weigh-in.

When the number of contestants has shrunk to a predetermined, smaller number (unknown to the contestants), the teams are dissolved and the contestants compete against each other individually.

The season finale reunites the final contestants remaining on the show with those eliminated. The eliminated contestants compete for a smaller prize while those remaining on the show compete for a larger prize and the title of "The Biggest Loser".

Episode format

Episodes are typically two hours long. Some episodes have been aired in a shortened one-hour format to accommodate adjacent network programming such as The Voice and the State of the Union address. Each episode features some, but not all, of the following activities (some contestants may not participate in an activity with physical requirements if placed on medical restrictions):

  1. Temptation: Contestants prepare for the first day of the week only to find a situation that involves temptation. The temptation often requires contestants to gamble by eating or drinking delicious but high-calorie foods, thus risking their total weight loss for the week, in exchange for what may seem to be a beneficial trade-off. The benefits may or may not be known to the contestants in advance. Examples include eating sweet foods for the chance to call their loved ones, eating a big slice of cake to win an unknown prize (which, in one episode, turned out to be an exercise bike) or giving up time with a trainer for a chance to win money. Contestants are given a set period of time before the offer passes.
  2. Reward Challenge: Contestants compete to win a prize, first as teams and then as individuals after the teams are dissolved. After the challenge, viewers are shown the winning team enjoying their reward while the losing team accepts their loss. Prizes range from immunity- which is exemption from elimination—to exercise equipment, phone calls home or weight prizes, which allow winners of a challenge to have a greater weight loss at the Weigh-In, or losers of a challenge to have a lower weight loss at the Weigh-In (e.g. a 6 lb weight loss would result in a 7 lb weight loss if a contestant were to win a "1 pound advantage" whereas it would result in a 5 lb weight loss if a contestant were to win a "1 pound disadvantage"). If there is an unequal number of players on each team, then the team(s) with more players must pick an individual or individuals who will sit out until there is an equal number of players on each team. Occasionally, players have to be cleared by the show's doctors in order to participate in physical challenges.
  3. Initial Workout: Contestants work out with the trainers. During this segment, the trainers will often speak with contestants, especially those who are doing poorly. Underlying issues are often revealed at this time, such as a loss of a family member or a physical illness; often, the triggering events that led to their weight gain in the first place.
  4. Last Chance Workout: Last chance workouts are often shown as grueling, final preparations for the weigh-in. This is a real test of strength, and trainers push contestants to their limits.
  5. Last Chance Challenge: Introduced in season seventeen, the last chance challenge is a variant between a reward challenge and a last chance workout. As with the last chance workout, the last chance challenge will usually take place inside the gym. The winning team will win a prize that benefits the team just before the upcoming weigh-in (for example, a two-pound weight advantage for the team).
  6. Weigh-In: Although the show depicts the weigh-in in an evening setting, the actual weight measurement occurs off-camera in a morning session, and the contestants are not told the results at that time. All contestants are weighed to determine the amount they have lost relative to their total body weight. During team-based competition, the team that loses the highest percentage wins, and the losing team must send one person home. When the teams are dissolved and the show becomes an individual competition, the two contestants who lose the lowest percentage of weight are below the yellow line and eligible for elimination. A similar setup to individual-based weigh-ins happens when the two initial teams are broken up into four teams of two or three, as happened in the second and fourth seasons. In season ten, the rules changed. The contestants are now expected to weigh in before challenges. The yellow line now increases up to half of the slots, depending on how many contestants there are at the ranch. Contestants below the yellow line face an elimination challenge before the vote. In addition, the Biggest Loser of the week is allowed to save a person below the yellow line from elimination. Some episodes have featured both a yellow line and a red line; a contestant who falls below the red line is eliminated outright from the competition without a vote of the other contestants.
  7. Elimination Challenge: Introduced in season nine, the elimination challenge was for the two people below the yellow line. In the only elimination challenge of that season, the longest one standing stayed while the other went home. In season ten, the elimination challenge was reintroduced. Those below the yellow line participate in a challenge to escape from the vote. The two least successful contestants face the vote.
  8. The Vote: The final segment of the show takes place in a dining room that has refrigerators labeled with each contestant's name (active contestants have their name illuminated) and filled with that contestant's favorite tempting foods. Prior to the vote, contestants facing elimination plead their case as to why they should remain on the Ranch (several episodes feature contestants making a "sacrificial" request to be sent home, generally a team agreeing as to which member should stay and which one should go, or one contestant feeling that they can make progress at home while another needs the Ranch setting to continue his/her progress). The other contestants are not required to honor any requests to be sent home, though generally such requests are honored. The contestants facing elimination arrive at the dining room first; the other contestants each carry a covered plate containing the name of the person they wish to vote out. In the event of a tie, the contestant or team who lost the least percentage of weight is eliminated, except if both of the contestants or teams lost the least percentage of weight. As people are voted out, the light for their name is extinguished. After the vote, the eliminated contestant is shown at home and discusses the progress they made in their weight loss.

Weight loss regimen: risks and criticism

heart attack]]. I have had some patients who want to [follow the show's regimen], and I counsel them against it. I think the show is so exploitative. They are taking poor people who have severe weight problems whose real focus is trying to win the quarter-million dollars."

According to LiveScience.com, "physicians and nutritionists worry the show's focus on competitive weight loss is, at best, counterproductive and, at worst, dangerous". Contestants on the show lose upwards of 10 pounds per week (in the very first week, some contestants have lost 20–30+ pounds in that one week alone), whereas the established medical guidelines for safe weight loss are between 1 and 2 pounds per week.

Other health writers take it even further, suggesting that everything from the show's dietary guidelines to workout routines are completely flawed.

Nutritionist Dr. Barry Sears sums up the wellness paradox: "First, eating less can cause stress to the system causing more hunger. Second, the more people exercise, the hungrier they become." Dr. Sears continues by claiming that "even with the most intense training, people are unlikely to add more than five pounds of muscle in 12 weeks of weight training. The reason viewers see their muscles emerging as the show goes on is because as the layer of fat surrounding the muscles is lost, muscles become more visible. Those muscles were always there but covered by a mass of fat tissue.

At the end of every telecast, the following disclaimer is shown:

Despite this claim of supervision, however, all contestants are required to sign a waiver that states: "no warranty, representation or guarantee has been made as to the qualifications or credentials of the medical professionals who examine me or perform any procedures on me in connection with my participation in the series, or their ability to diagnose medical conditions that may affect my fitness to participate in the series".

The weight-loss regimen used in the show—severe caloric restriction combined with up to six hours a day of strenuous exercise—involves risks including a weakening of the heart muscle, irregular heartbeat and dangerous reductions in potassium and electrolytes. Contestants, regardless of their weight, are required to certify that they believe they are "in excellent physical, emotional, psychological and mental health".

The Biggest Loser: Second Chances included a one-mile foot race in its first week, an event that led to the hospitalization of two of its contestants; Rob Huizenga, the show's medical consultant, when asked about the foot race said that "If we had it to do over, we wouldn't [have done] it" and noted that in response, the show's producers have "changed a lot of the way [they] do things" (including the close monitoring of contestants' body temperatures during exercise).

One attempt to create a healthier environment after Season 8's dangerous foot race was to include a pool for low-impact cardio. This helped contestants to lose weight more healthily and safely than some previous exercise routines in earlier seasons.

Because the show involves elimination, some contestants are encouraged to take risks that endanger their health to remain in the competition. Ryan C. Benson, the winner of the program's first season, publicly admitted that "he dropped some of the weight by fasting and dehydrating himself to the point that he was urinating blood". Since the show, Benson has regained all of his weight but 10–12 lbs. In 2009, Kai Hibbard (runner-up from the third season) told The New York Times that "she and other contestants would drink as little water as possible in the 24 hours before a weigh-in" and would "work out in as much clothing as possible" when the cameras were off. She further stated that two weeks after the show ended, she had regained about 31 pounds, mostly from staying hydrated. In a June 2010 interview, Hibbard said, "I do still struggle [with disordered eating]. I do. My husband says I'm still afraid of food... I'm still pretty messed up from the show."

According to a report by The New York Post, California authorities inquired the show due to allegations of doping contestants. The show dismissed these allegations as false and without merit. The show is under internal investigation as of July 2018.

Further allegations were detailed in a 2025 Netflix documentary series, Fit for TV: The Reality of The Biggest Loser.

Longitudinal study

In 2016, the results of a long-term study by the US National Institute of Health (NIH) were released that documented the weight gain and loss of contestants in Season 8, which aired in 2009. The study found that most of the 16 contestants regained their weight, and in some case gained more than before they entered the contest. Their metabolisms had slowed to the point where they were burning hundreds of calories a day less than other people of their new, reduced size. The New York Times reported: "What shocked the researchers was what happened next: As the years went by and the numbers on the scale climbed, the contestants' metabolisms did not recover... It was as if their bodies were intensifying their effort to pull the contestants back to their original weight." The article quoted Dr. Michael Rosenbaum, who said, "The difficulty in keeping weight off reflects biology, not a pathological lack of willpower."

After the study results were revealed, former contestants demanded that NBC cancel the show.

Location

Seasons two and three of The Biggest Loser were filmed at the Hummingbird Nest Ranch. The 126 acre ranch is an equestrian estate in Simi Valley, California, northwest of Los Angeles. Recent seasons have been filmed at King Gillette Ranch on Mulholland Highway near Malibu Creek State Park.

Series overview

#NamePremiereFinaleOriginal teamsThe Biggest LoserAt-Home winnerSynopsis
1The Biggest Loser season 1October 19, 2004,December 14, 2004,Two teams of sixRyan BensonDavid FioravantiFeatured 12 contestants divided into two teams, the Red team and the Blue team. The Red Team was coached by trainer Jillian Michaels, while The Blue Team was coached by trainer Bob Harper. The eventual winner of the $250,000 grand prize was Ryan, with a total weight loss of 122 pounds (37%).
2The Biggest Loser season 2September 13, 2005,November 29, 2005,Two teams of seven divided by genderMatt HooverPete ThomasFeatured fourteen contestants divided into two teams based on gender. Season two introduced the change that weigh-ins would be won or lost based on the percentage of total weight lost, rather than on the number of pounds lost. This change was made to create a more even playing field among contestants of varying weights. Matt was the eventual winner.
3The Biggest Loser season 3September 20, 2006,November 29, 2006,Two teams of seven and two at-home returneesErik ChopinBrian StarkeyInvolved the largest cast ever with 50 contestants initially beginning the show, each representing one US state. Kim Lyons joined the show, replacing Jillian Michaels as the Red Team trainer for only one season. After the initial group weigh-in and exercise, 14 contestants were selected to stay on the ranch and the other 36 contestants participated by losing weight at home. Later in the season, at-home players who lost the most weight were brought back to rejoin the cast on the ranch.
4The Biggest Loser season 4September 11, 2007,December 18, 2007,Three teams of sixBill GermanakosJim GermanakosIn February 2007, it was announced that Caroline Rhea was leaving the show, to be replaced by Days of Our Lives actress Alison Sweeney. It was also announced that there would be three teams (named for the color each team member would wear: blue, red, or black), with Bob Harper, Jillian Michaels and Kim Lyons returning as personal trainers. One of the contestants for this season was Amber Walker, a paramedic from Pasadena, Texas, who won a viewer vote among potential candidates on the April 23, 2007, edition of NBC's Today, even though the other three choices (Jez Luckett, Lezlye Donahue, and David Griffin) were eventually chosen as contestants as well. The winners were each twins: Jim, a contestant who had been voted off won the prize for the eliminated contestants. Bill won the grand prize of $250,000 and was pronounced The Biggest Loser by Sweeney.
5The Biggest Loser: CouplesJanuary 1, 2008,April 15, 2008,Ten teams of twoAli VincentBernie Salazar20 contestants competed on 10 teams, each paired with a loved one, co-worker or friend with the exception of one team of strangers. Alison Sweeney returned as host for her second season. Bob Harper and Jillian Michaels returned to train the contestants. Bernie won the eliminated edition, losing 130 pounds and winning $100,000. Ali Vincent lost the biggest percentage of weight and became the first female biggest loser of the US series, beating Roger and Kelly. However, internationally, she is not the first female biggest loser; the first female biggest loser is Jodie Prenger from the UK's second season.
6The Biggest Loser: FamiliesSeptember 16, 2008,December 16, 2008,Eight teams of twoMichelle AguilarHeba Salama16 contestants competed in pairs, fewer than in the previous season. Four teams consisted of married couples, training with Bob, while the other four were parent/child teams training with Jillian. Alison Sweeney returned as host for her third season. Michelle Aguilar was declared the Biggest Loser after beating Ed Brantley and Vicky Vilcan at the finale. She lost a total of 110 pounds, or 45.45 percent of her body weight, winning the $250,000 grand prize. Heba Salama was awarded the $100,000 prize for the eliminated contestant with the largest percentage of weight loss after losing 138 pounds, or 46.94 percent of her body weight
7The Biggest Loser: Couples 2January 6, 2009,May 12, 2009,Eleven teams of twoHelen PhillipsJerry HayesPromoted as the "Biggest Season in Biggest Loser History". Included the heaviest man ever on The Biggest Loser, Daniel Wright, weighing 454 lb. It also included the oldest participants ever, at age 63 years. It had also been declared by the group doctor to be the sickest group of contestants ever, with 45 different medications being taken by them. Season 7 features a new team color the Silver Team in place of the Gray Team. With 22 people initially on the ranch, it also featured the largest number of on-ranch contestants ever on the show. It was won by 48-year-old Helen Phillips who lost 140 pounds or 54.47 percent of her body weight.
8The Biggest Loser: Second ChancesSeptember 15, 2009,December 8, 2009,Eight teams of twoDanny CahillRebecca Meyer16 contestants competed. The season once again started off with different colored teams but is the first since season 4 to have a non-couple start-off with 16 contestants of complete strangers competing as pairs. It featured a record number of contestants over 400 pounds, at five, including the heaviest woman and person ever on The Biggest Loser, Shay Sorrells, weighing 476 lb while the heaviest man this season weighs 444 pounds. Season 7 contestant Daniel Wright returns for this season. In Week 9, it introduced the red line, an automatic elimination line without a vote that would become more common in latter seasons
9The Biggest Loser: Couples 3January 5, 2010,May 25, 2010,Eleven teams of twoMichael VentrellaKoli PaluThe ninth season of The Biggest Loser premiered January 5, 2010, with a format similar to the last couples' season. A promo for the new season was shown during the Season 8 finale. This season had the heaviest contestant ever: 526 pound Michael Ventrella, as well as the heaviest couple: Twins James (485 lbs) and John (484 lbs), at 969 lbs. The $250,000 grand prize was awarded to Michael Ventrella who lost a biggest loser record 264 pounds. His total percentage of weight loss was 50.19%. "At home" winner Koli Palu went on to win the $100,000 prize. Palu, who spent the full season on the show, was eliminated in the finale, but he lost a larger percentage than Michael Ventrella and would have won the overall prize had he been selected by the viewers to move on instead of Daris George.
10The Biggest Loser: Pay It ForwardSeptember 21, 2010,December 14, 2010,Seven teams of threePatrick HouseMark PinkhasovichThis season has adopted a theme, called Paying It Forward, which means that the trainers won't only motivate contestants, but whole communities. 14 are initially selected to compete on the ranch, from seven trios of players from each of the seven cities visited, while others will be brought back during the season, which will lead to a contestant total of 21. The trainers traveled to seven cities. Contestants are competing as individuals, despite sharing the same-colored shirt. In a Biggest Loser first, half the contestants fall below the yellow line and must compete in an elimination challenge to save themselves from elimination
11The Biggest Loser: Couples 4January 4, 2011,May 24, 2011,Twelve teams of twoOlivia WardDenise "Deni" HillA fourth couples edition also marked the fourth year of a winter-spring season. The new team color to be added this season is aqua, replacing the white team. Season eleven will also feature major set changes including the scale, and changes to the trainers of the show. Two mystery trainers will be added as an alternative to the existing Bob/Jillian duo in the season's twist. In Week 3 their identities were revealed as Brett Hoebel and Cara Castronuova. The cast includes a man who is 507 pounds, second to only season 9's Michael. In the thirteenth episode, a two-person white team will be added, making this the biggest season cast in show history. Former Olympic gold medalist Rulon Gardner was also a contestant that season.
12The Biggest Loser: Battle of the AgesSeptember 20, 2011,December 13, 2011,Three teams of fiveJohn RhodeJennifer RumpleFor the first time the contestants were divided by age in the Battle of the Ages. There will be three teams: under 30, 30–49 and 50 and over. The heaviest contestant weighed in at 447 pounds. Two new trainers, Anna Kournikova and Dolvett Quince, joined Bob this season. This was the first season since Season 4 not to have different-colored teams of two.
13The Biggest Loser: No ExcusesJanuary 3, 2012,May 1, 2012,Ten teams of twoJeremy BrittMike MessinaIn a theme of "No Excuses", each week is centered on a different excuse related to weight loss and obesity and how to tackle those excuses. For the first time teams competed against their partner in challenges, workouts and elimination. Dolvett Quince returned for his second season. Season 13 began with a smaller cast than the previous seasons with the heaviest contestant weighing in at 403 pounds.
14The Biggest Loser: Challenge AmericaJanuary 6, 2013,March 18, 2013,Three teams of fiveDanni AllenGina McDonaldJillian Michaels returned to the show for the third time after another two-year absence. She trained alongside Bob Harper and Dolvett Quince. The team colors this season were Blue (Bob), Red (Dolvett) and White (Jillian). For the first time, three teenagers, one for each team, aged 13 to 17, competed outside the ranch. Season 14 also introduces a new logo.
15The Biggest Loser: Second Chances 2October 15, 2013,February 4, 2014,Three teams of fiveRachel FredericksonTumi OguntalaIn a Biggest Loser first, the trainers are part of casting process, handpicking which contestants to be on the show. In a theme of "Second Chances", the trainers will also utilize a "Trainer Save", allowing each trainer to rescue one player on their respective team from going home. Among the contestants to compete this season are Olympic weightlifter Holley Mangold and American Idol winner Ruben Studdard. Studdard is also the largest contestant of the season, weighing in at 462 pounds. Bob Harper, Jillian Michaels and Dolvett Quince return once again as the trainers for this season
16The Biggest Loser: Glory DaysSeptember 11, 2014,January 29, 2015,Three teams of 6 and two Comeback Canyon PlayersToma DobrosavljevicJordan AlicandroJillian Michaels will not be returning for this season, marking the third time she has left the show. Trainers Bob Harper and Dolvett Quince will be returning, and two new trainers, Jessie Pavelka and Jennifer Widerstrom will also be joining the cast, and will be replacing Jillian Michaels. Glory Days features an entire cast of former athletes and each week Bob Harper will train at Comeback Canyon, a secret location for eliminated contestants to compete for a second chance at the ranch toward the finale
17The Biggest Loser: Temptation NationJanuary 4, 2016,February 22, 2016,Two teams of eightRoberto HernandezLuis HernandezBob Harper replaces Alison Sweeney as host. Season 17 also marks the return of couples for the first time since season 13 with Dolvett and Jennifer training four couples each on their Red and Black teams respectively. Among other changes this season includes a complete renovation of the Biggest Loser gym and scale. The thematic motif this season is temptation as the contestants will be faced with temptation-based challenges such as money and electronics. Contestants will be weighed side by side with two scales, one for Team Jen and one for Team Dolvett. Another format changes this season is the yellow line for teams in which only the two lowest percentages on the losing team are up for elimination.
18The Biggest Loser season 18January 28, 2020,March 31, 2020,Two teams of sixJim DiBattistaMegan HoffmanProgram moves to USA Network, and Bob Harper returns as host. New trainers are Erica Lugo and Steve Cook. USA takes a lighter hearted approach than the previous show by eliminating temptations and voting contestants off of the show.

Trainers

TrainerSeasons123456789101112131415161718
Bob Harper}}Host}}
Jillian Michaels}}}}}}}}}}}}
Kim Lyons}}}}}}
Brett Hoebel}}}}}}
Cara Castronuova}}}}}}
Dolvett Quince}}}}}}
Anna Kournikova}}}}}}
Jennifer Widerstrom}}}}}}
Jessie Pavelka}}}}}}
Steve Cook}}}}
Erica Lugo}}}}

Winners

Grand Prize

SeasonContestantAgeHeightStart
BMIStart
weightFinale
BMIFinale
weightLbs
lostPercent
1Ryan Benson366 ft330 lb208 lb122 lb
2Matt Hoover285 ft339 lb182 lb157 lb
3Erik Chopin356 ft407 lb193 lb214 lb
4Bill Germanakos405 ft334 lb170 lb164 lb
5Ali Vincent325 ft234 lb122 lb112 lb
6Michelle Aguilar265 ft242 lb132 lb110 lb
7Helen Phillips475 ft257 lb117 lb140 lb
8Danny Cahill395 ft430 lb191 lb239 lb
9Michael Ventrella306 ft526 lb262 lb264 lb
10Patrick House286 ft400 lb219 lb181 lb
11Olivia Ward355 ft261 lb132 lb129 lb
12John Rhode406 ft445 lb225 lb220 lb
13Jeremy Britt215 ft389 lb190 lb199 lb
14Danni Allen265 ft258 lb137 lb121 lb
15Rachel Frederickson245 ft260 lb105 lb155 lb
16Toma Dobrosavljevic335 ft336 lb165 lb171 lb
17Roberto Hernandez365 ft348 lb188 lb160 lb
18Jim DiBattista476 ft385 lb241 lb144 lb

;BMI : Underweight (less than 18.5 BMI) : Normal (18.5 – 24.9 BMI) : Overweight (25 – 29.9 BMI) : Obese Class I (30 – 34.9 BMI) : Obese Class II (35 – 39.9 BMI) : Obese Class III (greater than 40 BMI)

At-Home Prize

Given to the person losing the most percentage of body weight under the eliminated contestants.

SeasonContestantAgeHeightStart
BMIStart
weightFinale
BMIFinale
weightLbs
lostPercent
1Dave Fioravanti395 ft250 lb179 lb71 lb
2Pete Thomas366 ft401 lb216 lb185 lb
3Brian Starkey335 ft308 lb152 lb156 lb
4Jim Germanakos405 ft361 lb175 lb186 lb
5Bernie Salazar275 ft283 lb153 lb130 lb
6Heba Salama305 ft294 lb156 lb138 lb
7Jerry Hayes636 ft369 lb192 lb177 lb
8Rebecca Meyer255 ft279 lb140 lb139 lb
9Koli Palu296 ft403 lb188 lb215 lb
10Mark Pinkhasovich316 ft421 lb208 lb213 lb
11Deni Hill595 ft256 lb131 lb125 lb
12Jennifer Rumple395 ft330 lb185 lb145 lb
13Mike Messina416 ft358 lb198 lb160 lb
14Gina McDonald475 ft245 lb132 lb113 lb
15Tumi Oguntala415 ft319 lb144 lb175 lb
16Jordan Alicandro325 ft323 lb180 lb143 lb
17Luis Hernandez365 ft308 lb169 lb139 lb
18Megan Hoffman355 ft290 lb207 lb83 lb

;BMI : Underweight (less than 18.5 BMI) : Normal (18.5 – 24.9 BMI) : Overweight (25 – 29.9 BMI) : Obese Class I (30 – 34.9 BMI) : Obese Class II (35 – 39.9 BMI) : Obese Class III (greater than 40 BMI)

Television ratings

SeasonEpisodesSeason premiereSeason finaleSeasonRankViewers
(in millions)Season 110title=Primetime seriesurl=https://www.hollywoodreporter.com/hr/search/article_display.jsp?vnu_content_id=1000937471work=The Hollywood Reporterpublisher=Nielsen Business Mediadate=May 27, 2005access-date=February 12, 2010url-status=deadarchive-url=https://web.archive.org/web/20100308110700/http://www.hollywoodreporter.com/hr/search/article_display.jsp?vnu_content_id=1000937471archive-date=March 8, 2010 }}10.3Season 212url=https://www.hollywoodreporter.com/hr/search/article_display.jsp?vnu_content_id=1002576393work=The Hollywood Reporterpublisher=Nielsen Business Mediatitle=Seriesdate=May 26, 2006access-date=December 2, 2010url-status=deadarchive-url=https://web.archive.org/web/20100722095055/http://www.hollywoodreporter.com/hr/search/article_display.jsp?vnu_content_id=1002576393archive-date=July 22, 2010 }}10.1Season 312work=The Hollywood Reporterpublisher=Nielsen Business Mediadate=May 25, 2007url=https://www.hollywoodreporter.com/hr/content_display/television/features/e3ifbfdd1bcb53266ad8d9a71cad261604f?pn=2title=2006–07 primetime wrapaccess-date=February 12, 2010url-status=deadarchive-url=https://web.archive.org/web/20120102063804/http://www1.hollywoodreporter.com/hr/content_display/television/features/e3ifbfdd1bcb53266ad8d9a71cad261604farchive-date=January 2, 2012 }}8.3Season 415publisher=ABC Medianetdate=May 28, 2008url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=052808_06title= Season Program Rankings from 09/24/07 through 05/25/08access-date=February 12, 2010}}8.16Couples16#578.96Families13publisher=ABC Medianetdate=May 19, 2009url=http://abcmedianet.com/web/dnr/dispDNR.aspx?id=051909_05title= Season Program Rankings from 09/22/08 through 05/17/09access-date=February 12, 2010}}8.66Couples 219#3910.25Second Chances13website=Deadline Hollywooddate=May 27, 2010url=https://deadline.com/2010/05/full-series-rankings-for-the-2009-10-broadcast-season-44277/title= Full Series Rankings For The 2009–10 Broadcast Seasonaccess-date=May 18, 2010first=Nellielast=Andreeva}}10.41Couples 319#379.41Pay It Forward13website=Deadline Hollywooddate=May 27, 2011url=https://deadline.com/2011/05/full-2010-11-season-series-rankers-135917/title=Full 2010–2011 TV Season Series Rankingsaccess-date=May 30, 2011first=Nellielast=Andreeva}}8.28Couples 421#478.46Battle of the Ages13last=Andreevafirst=Nellietitle=Full 2011–2012 TV Season Series Rankingsurl=https://deadline.com/2012/05/full-2011-2012-tv-season-series-rankings-277941/website=Deadline Hollywooddate=May 25, 2012access-date=August 20, 2012}}6.93No Excuses18#657.18Challenge America12#547.28Second Chances 215#557.36Glory Days18#104url=https://deadline.com/2015/05/2014-15-full-tv-season-ratings-shows-rankings-1201431167/title=Full 2014–15 Series Rankingswebsite=Deadline Hollywooddate=May 22, 2015access-date=May 22, 2015}}Temptation Nation8#101url=https://deadline.com/2016/05/tv-season-2015-2016-series-rankings-shows-full-list-1201763189/title=Full 2015–16 TV Season Series Rankingswebsite=Deadline Hollywooddate=May 26, 2015access-date=May 26, 2015}}Season 1810
October 19, 2004December 14, 20042004–05
September 13, 2005November 29, 20052005–06
September 20, 2006November 29, 20062006–07
September 11, 2007December 18, 20072007–08
January 1, 2008April 15, 2008
September 16, 2008December 16, 20082008–09
January 6, 2009May 12, 2009
September 15, 2009December 8, 20092009–10
January 5, 2010May 25, 2010
September 21, 2010December 14, 20102010–11
January 4, 2011May 24, 2011
September 20, 2011December 13, 20112011–12
January 3, 2012May 1, 2012
January 6, 2013March 18, 20132012–13
October 15, 2013February 4, 20142013–14
September 11, 2014January 29, 20152014–15
January 4, 2016February 22, 20162015–16
January 28, 2020March 31, 20202019–20

Records

The following table contains records for the American version of The Biggest Loser. Only records that were officially announced on the show are included.

  • ES notes an extended season
  • EW notes an extended week
CategoryRecord holdersResults (imperial/metric)
Most Weight Loss in a Season (Male)ESMichael Ventrella (Couples 3)264 lbs/119.8 kg
Most Weight Loss in a Season (Female)ESAshley Johnston (Couples 3)183 lbs/83.0 kg
Heaviest starting weight (Male)Michael Ventrella (Couples 3)526 lbs/238.6 kg
Heaviest starting weight (Female)Shay Sorrells (Second Chances)476 lbs/215.9 kg
Heaviest starting weight (Team)John & James Crutchfield (Couples 3)969 lbs/439.5 kg
Biggest Percentage Weight Loss in a Season (Male – Finalist)ESDanny Cahill (Second Chances)55.58%
Biggest Percentage Weight Loss in a Season (Female – Finalist)ESRachel Frederickson (Second Chances 2)59.62%
Biggest Percentage Weight Loss in a Season (Male – At-Home Prize)ESKoli Palu (Couples 3)53.35%
Biggest Percentage Weight Loss in a Season (Female – At-Home Prize)ESTumi Oguntala (Second Chances 2)54.86%
Most Weight Lost in a week (Male – week 1)Mark Pinhasovich (Pay It Forward) & Moses Kinikini (Couples 4)41 lbs/18.6 kg
Most Weight Lost in a week (Female – week 1)Patti Anderson (Couples 3) & Sonya Jones (Glory Days)23 lbs/10.4 kg
Most Weight Lost in a week (Male – not week 1)Neil Tejwani (Season 4 week 8)33 lbs/15.0 kg
Most Weight Lost in a week (Female – not week 1)EWHolley Mangold (Second Chances 2 week 5)19 lbs/8.7 kg
Fastest to Lose 100 Pounds (Male)Moses Kinikini (Couples 4) (100 lbs) & John Rhode (Battle of the Ages) (101 lbs)6 weeks
Fastest to Lose 100 Pounds (Female)EWShay Sorrells (Second Chances)9 weeks
Youngest Contestant (Male)Mike Morelli (Couples 2)18
Youngest Contestant (Female)Blake Benge (Glory Days)18
Oldest Contestant (Male)Johnny Forger (Battle of the Ages)66
Oldest Contestant (Female)Estella Hayes (Couples 2) & Bonnie Griffin (Battle of the Ages) & Nancy Rajala (No Excuses)63
Most Weight Lost on Campus (Male)ESMichael Ventrella (Couples 3)204 lbs
Most Weight Lost on Campus (Female)ESAshley Johnston (Couples 3)143 lbs
Highest percentage of weight loss on Campus (Male) ESDaris George (Couples 3)43.64%
Highest percentage of weight loss on Campus (Female) ESTara Costa (Couples 2)45.23%
Longest Time Gone Without Falling Below the Yellow Line ESTara Costa (Couples 2)18 weeks
Most Time Losing Double Digits in a row in the Weigh-InsDanny Cahill (Second Chances) and Michael Ventrella (Couples 2)7 weeks
Longest Running Couple (Male Team – Finalists)ESMike Morelli and Ron Morelli (Couples 2)18 weeks
Longest Running Couple (Female Team – Finalists)ESOlivia Ward and Hannah Curlee (Couples 4)20 weeks
Longest Running Couple (Male & Female Team – Finalists)ESConda Britt and Jeremy Britt (No Excuses)15 weeks
Longest Time Gone Without Facing EliminationTara Costa (Couples 2)18 weeks
Most Challenges WonTara Costa (Couples 2)11

References

References

  1. Robinson, Will. (August 25, 2015). "Alison Sweeney leaving 'The Biggest Loser' after 8 years as Host".
  2. Kondolojy, Amanda. (September 8, 2015). "Veteran Trainer Bob Harper Named Host of NBC's 'The Biggest Loser'". Tvbythenumbers.com.
  3. (May 13, 2019). "The Biggest Loser Reboot Ordered at USA Network, to Premiere in 2020". [[TVLine]].
  4. Seidman, Robert. "NBC's 'The Biggest Loser' Shortened and Moved for 'The Voice'". Zap2It.
  5. Hughes, Jason. (January 25, 2012). "The Biggest Loser: Dolvett Can't Take The Attitude, Kicks One Contestant Out Of The Gym (VIDEO)". [[HuffPost]].
  6. (February 21, 2010). "'The Biggest Loser' Has Big Problems, Health Experts Say". LiveScience.
  7. (March 28, 2011). "Tips for losing weight: MedlinePlus Medical Encyclopedia". Nlm.nih.gov.
  8. (April 9, 2013). "The Biggest Loser: Making Weight-Loss an Unreachable Goal for Millions". Undeferredliving.
  9. (May 10, 2016). "Gaining it Back: The Science behind The Biggest Loser's Failure". ZoneDiet.
  10. Pitney, Nico. (November 25, 2009). "Biggest Loser: Contestants Admit Dangerous Practices, Can't Speak Out". [[The Huffington Post]].
  11. Edward Wyatt. (November 25, 2009). "On 'The Biggest Loser,' Health Can Take Back Seat". The New York Times.
  12. "The Endless Pool is ready for its close-up!". endlesspools.com.
  13. Poretsky, H.H.C., Golda. (June 16, 2010). "Bigger Loser Finalist Says Show Gave Her An Eating Disorder". Jezebel.com.
  14. Li, David K.. (May 31, 2016). "Authorities probe 'Biggest Loser' over doping allegations".
  15. "NBC Internal Investigation Probed Whether 'Biggest Loser' Contestants Were Given Drugs". The Hollywood Reporter.
  16. (2025-08-19). "Opinion {{!}} A new docuseries lays out the painful purpose behind the 'The Biggest Loser'".
  17. Harrison, Phil. (2025-08-15). "Fit for TV: The Reality of The Biggest Loser review – how did television ever sink so low?". The Guardian.
  18. (May 2, 2016). "After 'The Biggest Loser,' Their Bodies Fought to Regain Weight". [[The New York Times]].
  19. Woollard, Deidre. (August 12, 2007). "Hummingbird Nest Ranch, Estate of the Day". Luxist.com.
  20. McGrath, Rachel (October 25, 2014) [http://www.vcstar.com/news/price-of-paradise/vcspop-plans-for-spa-resort-start-to-take-flight-at-simi-valleys-hummingbird-nest-ranch_76671543 "Plans for spa resort start to take flight at Simi Valley's Hummingbird Nest Ranch"] ''[[Ventura County Star]]''
  21. "Biggest Loser Ranch In Malibu Creek State Park – 2008 Season". Virtualbirdseye.com.
  22. "casting audition press your luck at". Tvrules.net.
  23. "Alison Sweeney Joins 'Biggest Loser'".
  24. "MSN | Outlook, Office, Skype, Bing, Breaking News, and Latest Videos".
  25. "TV Show News and Ratings – Live Feed".
  26. "Yahoo!".
  27. "The Biggest Edition Of 'The Biggest Loser".
  28. (August 24, 2010). "NBC reveals identities of 'The Biggest Loser's tenth season cast, twist". Reality TV World.
  29. NBC Announces New Mid-Season Schedule. (November 15, 2010). "NBC Announces New Mid-Season Schedule". NBC.com.
  30. (December 13, 2010). "The Breakdown: Meet the Cast of 'The Biggest Loser'{{'s}} New Season".
  31. "Ruben Studdard, former 'American Idol' winner, to compete on 'The Biggest Loser'". NY Daily News.
  32. Amanda Michelle Steiner. (June 25, 2014). "Jillian Michaels Quits 'The Biggest Loser': Dispute Over Rachel Frederickson? – Hollywood Life". Hollywood Life.
  33. Ashley Majeski. (June 30, 2014). "'Biggest Loser' adds two new trainers for upcoming season". TODAY.com.
  34. (May 27, 2005). "Primetime series". Nielsen Business Media.
  35. (May 26, 2006). "Series". Nielsen Business Media.
  36. (May 25, 2007). "2006–07 primetime wrap". Nielsen Business Media.
  37. (May 28, 2008). "Season Program Rankings from 09/24/07 through 05/25/08". [[American Broadcasting Company.
  38. (May 19, 2009). "Season Program Rankings from 09/22/08 through 05/17/09". [[American Broadcasting Company.
  39. Andreeva, Nellie. (May 27, 2010). "Full Series Rankings For The 2009–10 Broadcast Season".
  40. Andreeva, Nellie. (May 27, 2011). "Full 2010–2011 TV Season Series Rankings".
  41. Andreeva, Nellie. (May 25, 2012). "Full 2011–2012 TV Season Series Rankings".
  42. "Shows A-Z – biggest loser, the on nbc". The Futon Critic.
  43. Patten, Dominic. (May 23, 2013). "Full 2012–2013 TV Season Series Rankings".
  44. (2014). "Ratingsa".
  45. (May 22, 2015). "Full 2014–15 Series Rankings".
  46. (May 26, 2015). "Full 2015–16 TV Season Series Rankings".
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