'Biggest Loser' host Bob Harper confirms he suffered a heart attack, says he's 'feeling better'


Bob Harper is on the mend.

The Biggest Loser host confirmed reports that he had suffered a heart attack with an Instagram post on Monday, sharing a photo of himself sitting up in a hospital bed and holding his beloved dog, Karl.

"Two weeks ago yesterday I had a heart attack," he wrote. "I am feeling better. Just taking it easy. KARL has been a great nurse."

The 51-year-old didn't offer much information about what led to the heart attack, but did indicate that he's recovering at home.

"I want to thank everyone for the outpouring of message and support," he continued. "It feels good to be cared about. I've been home for eight days now. Again, THANK YOU SO MUCH!! I'm lucky to have such good friends and family to take care of me right now."

TMZ first reported the news, claiming that the health scare left Harper unconscious for two days after collapsing in a New York City gym.

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Bob Harper out and about
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Bob Harper out and about
NEW YORK, NY - JANUARY 24: Bob Harper attends the Build Series to discuss his new book 'The Super Carb Diet: Shed Pounds, Build Strength, Eat Real Food' at Build Studio on January 24, 2018 in New York City. (Photo by Andrew Toth/Getty Images)
WATCH WHAT HAPPENS LIVE WITH ANDY COHEN -- Pictured: Bob Harper -- (Photo by: Charles Sykes/Bravo/NBCU Photo Bank via Getty Images)
NEW YORK, NY - NOVEMBER 07: Bob Harper attends The 2017 ICP spotlights luncheon honoring Pulitzer Prize-Winning photojournalist Lynsey Addario on November 7, 2017 in New York City. (Photo by Thos Robinson/Getty Images for the International Center of Photography)
TODAY -- Pictured: Bob Harper on Thursday, July 20, 2017 -- (Photo by: Nathan Congleton/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - APRIL 24: Host Bob Harper during the Tribeca Film Festival premiere for the feature documentary, The Resilient Heart, at the Tribeca Film Center on April 24, 2017 in New York City. The Resilient Heart follows Dr. Valentin Fuster on his global trek to fight heart disease by educating adults as well as todays new generation on how basic lifestyle changes can have a significant impact on your health. The film was directed by Oscar�-nominee and Grammy� winning director Susan Froemke, and was made with generous support from The Valentin Fuster Mount Sinai Foundation for Science, Health & Empowerment, Inc. (Photo by Bennett Raglin/Getty Images for The Valentine Fuster Mount Sinai Foundation for Science, Health & Empowerment, Inc.)
NEW YORK, NY - APRIL 17: Bob Harper poses at the opening night of the new musical based on the film 'Groundhog Day' on Broadway at The August Wilson Theatre on April 17, 2017 in New York City. (Photo by Bruce Glikas/Bruce Glikas/FilmMagic)

THE BIGGEST LOSER -- 'Keep On Truckin'' Episode 1703

Pictured: Bob Harper

(Photo by: Tyler Golden/NBC/NBCU Photo Bank via Getty Images)

THE BIGGEST LOSER -- Season: 17

Pictured: (l-r) Jennifer Widerstrom, Bob Harper, Dolvett Quince

(Photo by: Chris Haston/NBC/NBCU Photo Bank via Getty Images)

Kohl's Wellness Ambassador Bob Harper attends the Kohl's Motivation Market on January 12, 2017 in Los Angeles, California.

(Photo by John Sciulli/Getty Images for Kohl's)

THE BIGGEST LOSER -- Episode 1616

Pictured: (l-r) Bob Harper, Rob Guiry

(Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)

Bob Harper attends the Hetrick-Martin Institute's 30th Annual Emery Awards: Help Me Imagine at Cipriani Wall Street on December 7, 2016 in New York City.

(Photo by Jared Siskin/Patrick McMullan via Getty Images)

Kohl's Wellness Ambassadors Kevin Curry, Jordan Younger and Bob Harper attend the Kohl's Motivation Market on January 12, 2017 in Los Angeles, California.

(Photo by John Sciulli/Getty Images for Kohl's)

TV personality Bob Harper poses for a portrait during the NBCUniversal Press Day at The Langham Huntington, Pasadena on January 13, 2016 in Pasadena, California.

(Photo by: Christopher Polk/NBC/NBCU Photo Bank via Getty Images) 

WATCH WHAT HAPPENS LIVE

Pictured (l-r): Shannon Beador, Bob Harper

(Photo by: Heidi Gutman/Bravo/NBCU Photo Bank via Getty Images)

WATCH WHAT HAPPENS LIVE

Pictured: Bob Harper

(Photo by: Heidi Gutman/Bravo/NBCU Photo Bank via Getty Images)

Hairstylist Chris McMillan, Christy Conaway and Bob Harper attend Chris McMillan Celebrates His Birthday And Recent Nuptials Hosted By Linda Wells, Allure Magazine at Escuela Taqueria on November 7, 2014 in Los Angeles, California.

(Photo by Donato Sardella/WireImage)

Bob Harper attends 'Sunset Boulevard' Opening Night at Palace Theatre on February 9, 2017 in New York City.

(Photo by Jimi Celeste/Patrick McMullan via Getty Images)

Bethenny hosts Bob Harper, Tiki Barber, Amber Rose and Ian Ziering at the CBS Broadcast Center on October 22, 2013 in New York City.

(Photo by Neilson Barnard/Getty Images for 'bethenny')

Bob Harper of NBCUniversal's 'The Biggest Loser' poses in the Getty Images Portrait Studio at the 2016 Winter Television Critics Association press tour at the Langham Hotel on January 13, 2016 in Pasadena, California.

(Photo by Maarten de Boer/Getty Images Portraits)

THE BIGGEST LOSER -- Episode 1601

Pictured:(l-r) Vanessa Hayden, Bob Harper, Zina Garrison

(Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)

THE BIGGEST LOSER -- 'Live Finale' Episode 1713

Pictured: Bob Harper

(Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)

Kohl's Wellness Ambassador Bob Harper (left) and guest attend the Kohl's Motivation Market on January 12, 2017 in Los Angeles, California.

(Photo by John Sciulli/Getty Images for Kohl's)

THE BIGGEST LOSER -- 'Live Finale' Episode 1713

Pictured: (l-r) Robert Kidney, Sarah Gilbert, Bob Harper, Tonsheia Grandison, Britney Anderson

(Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)

Ellen DeGeneres and trainer Bob Harper are seen on September 03, 2014 in Los Angeles, California.

(Photo by Bauer-Griffin/GC Images)

THE BIGGEST LOSER -- 'Real World Problems' Episode 1709

Pictured: Bob Harper

(Photo by: Tyler Golden/NBC/NBCU Photo Bank via Getty Images)

Bob Harper speaks at the Apple Store Soho on August 4, 2015 in New York City.

(Photo by Ilya S. Savenok/Getty Images)

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