Through his journey, Colao has found support and motivation in his parents and girlfriend, Julia Gonzalez. He says he still struggles to see himself in his slimmer body, and Gonzalez pushes him to look on the bright side.
"I'm always going to be a positive voice for him to remember what a great thing he's accomplished," she says. "He inspires so many people. People see him, and they realize that they can do it, too."
Colao is using his experience to become a certified personal trainer.
"My main desire is to help people like me -- people that are obese and feel hopeless about the situation," he says.
Four years ago, Colao could not tie his shoes without losing his breath. A few weeks ago, he did a push-up for the first time. In two months, he hopes to be a certified personal trainer and well on his way to helping others reach their weight-loss goals.