Rachel Frederickson, "Biggest Loser" 15

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'Biggest Loser' 15: Before and after

After weeks of grueling workouts and big changes to their eating habits, the contestants of season 15 show off their fab new bodies.

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Rachel Frederickson, "Biggest Loser" 15

Rachel Frederickson

Rachel Frederickson, "Biggest Loser" 15
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Tumi Oguntala, "Biggest Loser" season 15

Tumi Oguntala

Tumi Oguntala, "Biggest Loser" season 15
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David Brown "Biggest Loser" 15

David Brown

David Brown "Biggest Loser" 15
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Bobby Saleem, "Biggest Loser" 15

Bobby Saleem

Bobby Saleem, "Biggest Loser" 15
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Marie Pearl, "Biggest Loser" 15

Marie Pearl

Marie Pearl, "Biggest Loser" 15
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Craig Arrington, "Biggest Loser" season 15

Craig Arrington

Craig Arrington, "Biggest Loser" season 15
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Chelsea Arthurs, "Biggest Loser" 15

Chelsea Arthurs

Chelsea Arthurs, "Biggest Loser" 15
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Jennifer Messer, "Biggest Loser" 15

Jennifer Messer

Jennifer Messer, "Biggest Loser" 15
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Jay Sheets, "Biggest Loser" 15

Jay Sheets

Jay Sheets, "Biggest Loser" 15
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Matt Hooper, "Biggest Loser" 15

Matt Hooper

Matt Hooper, "Biggest Loser" 15
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Fernanda Abarca, "Biggest Loser" 15

Fernanda Abarca

Fernanda Abarca, "Biggest Loser" 15
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Tanya Winfield, "Biggest Loser" 15

Tanya Winfield

Tanya Winfield, "Biggest Loser" 15
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Holley Mangold, Biggest Loser season 15

Holley Mangold

Holley Mangold, Biggest Loser season 15
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Ruben Studdard, "Biggest Loser" 15

Ruben Studdard

Ruben Studdard, "Biggest Loser" 15
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Hap Holmstead, Biggest Loser season 15

Hap Holmstead

Hap Holmstead, Biggest Loser season 15
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