The actor, who plays newcomer Joey Branning in the BBC serial, won the 'Sexiest Male' award at Monday's (September 24) Inside Soap Awards.
When asked in an interview with the BBC whether he was a "hunk" in his teenage years, Witts responded: "No, not in the slightest, I had braces and glasses and long hair!"
Revealing the extent of his fitness regime, the 20-year-old is also quoted as saying: "I've been training for about five years now, just as a hobby. Everyone says that it's a bit much, as I train five times a week, but it's just a hobby, everyone's got a hobby.
"I do weightlifting, body building. I train with a guy called Chris Jones, who is British number one. He teaches me a lot, he's very good."
Witts also commented on the reaction of female fans on the street, adding: "Sometimes you get the odd screaming girl here or there, but I don't know what to do in those situations.
"I'm just a normal human being - I don't understand when people are screaming at me or hyperventilating."