What's your best reason for losing weight?

Nat Ambrose lost 100 pounds to be able to ride the Volcano roller coaster at Virginia's Kings Dominion theme park. What's your reason? (Kings Dominion)They say losing weight can be like riding a roller coaster, but in this case a Virginia man lost weight for a roller coaster.

Nat Ambrose dropped 100 pounds after workers at the Kings Dominion theme park in Doswell, Va., told him he could not fit into the harness for the Volcano roller coaster and therefore couldn't ride for safety reasons, according to WTVR.

"We can't put him at risk, or anybody else at risk. We simply just couldn't put him on," Gene Petriello, the communications manager for Kings Dominion, told the local CBS station.

Nat Ambrose as he appeared before losing 100 pounds to ride the Volcano. (Kings Dominion)"It was embarrassing," Ambrose added. "I came home and said to my wife, 'This is it, this is crazy. I can't fit on a ride at an amusement park.'"

Determined to lose the weight, Ambrose starting exercising at a local gym and watching what he ate, he told reporters.

He lost 105 pounds - nearly one third of his total body weight of 300 pounds - in nine months.

"I've put on four or five pounds since then - kind of hoping it's muscle," he told WTVR jokingly.

He has since returned to Kings Dominion and rode the Volcano.

On a more serious note, Ambrose has advice for others who might be struggling to lose weight.

"You just have to want to do it," he said. "If you don't want to do it, you're not going to."

Do you have a weight loss success story? What was your reason for losing the weight? And what advice do you have for others struggling to shed unwanted pounds? Share your stories in the field below, or by emailing us at yournews@cbc.ca.


(This survey is not scientific. Results are based on readers' responses.)