Alison Sweeney

It's the episode "that moves me to tears every time," the host writes

The Biggest Loser host blogs about meeting the Olympic athletes and reveals details on her new book

The Biggest Loser host blogs about the return of the show and how she kicked off 2014

The contestants are even more determined to lose weight when the teams switch to singles

The white team gets a valuable lesson about making time for fitness

Jillian and Jay forge a tighter bond as he anxiously returns home to see his family

The American Idol winner heads back to the ranch

"The frustration was high at the start of the weigh-in," the host writes of Tuesday's episode

The host gives props to the contestants' unwavering determination as she recaps Tuesday night's episode

The American Idol winner heads back to the ranch

"The frustration was high at the start of the weigh-in," the host writes of Tuesday's episode

The host gives props to the contestants' unwavering determination as she recaps Tuesday night's episode

The host is back with a blog post about the season premiere of the weight-loss competition

"This year's contestants are now part of that incredible family, who will embrace them," the host writes in her blog

The Biggest Loser host looks back at this season and reveals The Star Attraction

Alison Sweeney blogs about makeovers, paying it forward and a super successful weigh-in

"The weight loss numbers showed how much much progress they've made," Sweeney writes

"The contestants kept going and going, despite their injuries and exhaustion," she writes

The host blogs about the Valentine's Day temptation and why Danni made the right decision

Halfway through season 14, the contestants have all changed for the better

The Biggest Loser host blogs about why she was happy to run the 5K with the contestants

The Biggest Loser host blogs about staggering statistics about people, the challenges on this week's show and more

"Emotions run high and numbers are typically low," the host writes in her blog

"Jillian is back and more determined than ever to change the lives of those who need it most," the Biggest Loser host blogs

The Biggest Loser host and mom of two blogs about season 14 and what she's been up to during the holidays

The host signs off for a 13th season and asks, "Do you have anyone you'd want to cast for next season?"

"I was impressed with how well the contestants had done at home," says the host

"The campus is not a prison," the host writes, "and any contestant can leave whenever they want"