Jet Li Getting Treatment For Thyroid Condition

(Undated) -- Martial arts action star Jet Li is battling an overactive thyroid. The 50-year-old actor, known for his fighting physique, shared his diagnosis at a taping for a talent show he's judging in China this week. According to the "Belfast Telegraph," Li appeared to have a fuller face and heavier frame at the taping. He joked about his fluctuating weight, saying "I'm fat, I don't have the time to lose it. It's a fact." Li says he's been advised to avoid exercise with the medication he's taking for his condition since an overactive thyroid causes changes in a person's metabolism and heart rate. He said he was diagnosed with the condition in 2010.

Li appeared in last year's "The Expendables 2" and will appear in next year's third installment of the franchise alongside Sylvester Stallone, Jason Statham, Arnold Schwarzenegger, Harrison Ford and Mel Gibson.