1 of 11
Weight lost: 97 lbs. (from 218 to 121 lbs.)
Since losing almost 100 lbs. on the show, Hadden has undergone a lot of changes. Last December, she adopted a newborn son, Jaxon, and added late-night feedings and diaper changes to her workout regimen. "I have new time challenges but my own health and fitness are priorities," says Hadden, who attends a women's fitness class three days a week for 90 minutes. To relax, Hadden runs twice a week and insists the key is "never think you're done."
2 of 11
Weight lost: 148 lbs. (from 363 to 215 lbs.)
Season 5's runner-up, Shultz has hit the road to teach people about healthy living. "It is important to get the message out about wellness and good health, especially in the South where obesity is at an all-time high," says the Alabama native. The sweet treat he can't give up? Peanut butter. But traveling as much as he does, Shultz doesn't get to work out as much as he'd like. "I have to be really good with my food choices," he explains.
3 of 11
Weight lost: 85 lbs. (225 to around 140 lbs.)
The former U.S. Army private is working to become a psychologist and is gearing up for her second triathlon. "I find a new goal every time I achieve a previous goal," says Whang. And she's encouraged her whole family to live a healthier lifestyle. "My brother Joseph has lost 14 lbs. and my brother-in-law, Ken, lost 30 lbs."
4 of 11
Weight lost: 164 lbs. (334 to 170 lbs.)
The Biggest Loser of season 4 keeps on winning! "My brother Jim and I created our own company, Weight Loss Twins LLC (weightlosstwins.com)," says Bill of his inspirational speaking venture. To keep his diet under control while traveling, Bill keeps up with a Loser tradition: writing in a food journal and cutting out all temptations. "It's been 17 months, and I still have not had a shred of pasta, a single beer or a slice of white bread."
5 of 11
Weight lost: 186 lbs. (361 to 175 lbs.)
Now a self-professed gym rat, Jim goes to the gym five to six days a week. The police officer and father of three – who allows himself a healthy dose of pizza on his "high calorie days" – says he and his family have become "much more active, spending much more time at the beach, camping, [and] riding bikes. My wife Valerie even lost 50 pounds!"
6 of 11
Weight lost: 70 lbs. (from 239 to 169 lbs.)
With a slimmer body, King has developed a penchant for shopping. "Now that I can fit into regular clothes, I enjoy buying the latest styles and trends," says King, who is studying to becoming a personal trainer and nutritionist. To clear her mind and keep up her cardio, King goes on regular jogs with pals and goes to the gym five times a week. "Finding a friend to join your workouts makes them seem easier."
7 of 11
Weight lost: 101 lbs. (297 to 196 lbs.)
Talk about an accomplishment! The 63-year-old Lisenby recently rode a bicycle across the whole United States. "While I was on the show [that was] one of my goals," says the Peoria, Ill., native of the transcontinental ride where he faced rattle snakes, rain and a few flat tires. How did he do it? "Five to six small meals a day, and avoiding carbonated drinks," he explains.
8 of 11
Weight lost: 141 lbs. (from 436 to 295 lbs.)
Besides his trimmer physique, the enthusiastic former football player has something new to be excited about: His wife is expecting their first child. "She has lost 75 lbs. and I'm very proud of her, and now she's pregnant," says Patterson, who has an idea about how to help her lose the baby weight. "Burn, baby, burn! Burn those calories. Get moving and stay moving."
9 of 11
Weight lost: 107 lbs. (232 to 125 lbs.)
The stand-up comedian (pictured with a friend), who's now a size 2, says "cardio is as second nature as brushing my teeth now." She works out at the gym six days a week, making sure to do 6-12 hours of cardio weekly. Her diet trick: "Look into veggie options," she says. "Soy or veggie products have half the calories, fat, and carbs as most meats."
10 of 11
Weight lost: 98 lbs. (285 to 187 lbs.)
The bull-headed twin of season 5 reveals that life now is not a competition. "I am much more laid-back," he says. His diet these days? "I do not eat any processed or fast foods." Not only has he cut his food intake, he's also cut his TV watching! "I work out at least two hours six days a week." And what about those tempting snacks? "Instead of going after the candy bar, [I] grab an apple."
11 of 11
Weight lost: 80 lbs. (254 to 174 lbs.)
Motivated by her own Biggest Loser experience, Widder is currently working on a kids program to promote healthy lifestyles called SpikeFit at her local gym. "SpikeFit was [trainer] Jillian [Michaels's] nickname for me," says Widder, who is training for her first half-marathon in October. How does she stay motivated? "Find a workout you love," she says. "I get excited about going to spin [class] at 9 a.m. every Saturday."