"I'd never go back to the way I was. If I could do what I did, I can stay this way."
ONCE TEASED AS A "WHALE," SHE TRIMMED DOWN WITH CRUNCHES (AND A FEW FRIES)
TURNING POINT: Growing up, Meaghan Byrne and her family moved around a lot—and to deal with this stress, she turned to burgers, ice cream and mac 'n' cheese, hitting 228 lbs. in high school. "The kids called me 'whale,'" she says, "and then my doctor told me I was way too fat."
HOW SHE DID IT: In September 2003, the 5'5" Byrne started on the Slim-Fast plan, drinking a prepackaged shake at breakfast and lunch, and eating baked fish and vegetables for dinner. She also worked out to Pilates videos and did up to 80 crunches twice a day. By August 2005, the Henryville, Pa., waitress had dropped to 112 lbs.—but feeling that was "too skinny," she now maintains her weight at around 128 lbs. "If my friends get McDonald's," says Byrne, 20, "I get a cheeseburger and eat three fries."
READY FOR SUMMER: Last year, Byrne was stuck with a too-big bathing suit that she covered with a t-shirt. This year, her bikini fits. "I'm going to work on my tan!" she says.
Have you lost 100 lbs.—or more? Send your before and after photos and details on how you did it to: firstname.lastname@example.org.