Kraus has been open about his eating disorder past, even listing it on the website of his company, Worth Personal Training, as his motivation to get in shape and help others do the same.
During a sit-down interview with ET in September, Kraus spoke more about his fitness journey.
"I went through some pretty drastic changes in my own life. I was a kid wearing Harry Potter glasses and kind of chubby growing up, and found fitness at a later age. I was, like, 19 or 20 when I really started to get into it, and I felt the confidence grow inside of myself through that," he revealed. "Modeling, I just kind of happened upon when I was 20 and that also increased as time went on."
"As I got older, I changed emotionally and physically, and if I can make those changes in myself and see how happy my life is now in comparison to then, [I would love to guide] other people who are on that same path," he continued. "I want to bring happiness, I want to bring joy to other people's lives. That's what fulfills me."
"I've always been a helper and if I can do that through health and fitness, because I'm passionate in, then it's all the better," he added.
See more on Kraus, who is expected to make an appearance on The Bachelor Winter Games, in the video below.