See “Glee” star Kevin McHale’s insane before/after fitness transformation

Kevin McHale has traded in the music stand for a bench press. The former Glee star opened up about his fitness journey to Us, explaining how he went from cute boy-next-door to cute & ripped boy-next-door in 12 weeks.

“I had been working through an intestine and digestion issue that was eluding diagnosis and that really took a toll on me,” he said. “I was constantly in pain. I had tried so many different elimination diets—nothing was working. It got to the point where I was already feeling miserable because of the intestinal issues, plus the self-added guilt of not getting myself to the gym or eating as healthy as possible. It was a recipe for disaster.”

Umm #KevinMcHale from #Glee really did that!! #glowup

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That’s when the out 30-year-old performer enlisted some help; he signed up with Ultimate Performance, a training studio in L.A.

Related: Actor Kevin McHale posts totally adorable birthday message to his boyfriend

To round out those intense workouts, McHale also adopted a targeted diet of complex carbs, healthy fats, vegetables, and protein.

“I became obsessed with logging my food,” he said. “I’d also be rating my energy, sleep, and digestion each day. Knowing if I had a proper night’s sleep would directly correlate with how I was training and eating obviously, but when you track it for three months you can see trends and patterns—I loved it.”