He stars in the History Channel miniseries Texas Rising

By K.c. Blumm
Updated May 28, 2015 02:15 AM
Credit: Getty; Robert Voets/CBS

Jeffrey Dean Morgan lost a lot of weight for his new role in the new History Channel miniseries Texas Rising, but it wasn’t pretty.

“I lost over 40 pounds,” he told Kathie Lee Gifford and Hoda Kotb during an interview on Today on May 21.

“He had consumption,” Morgan, 49, explained of his character, “Deaf” Smith. “I got there and I was probably about 175, I left I was about 135. I ate a can of tuna fish a day. I did it in the most unhealthy way I could. I didn’t consult with a doctor or anything. We had said maybe we should lose, like, 10 pounds and then I just kept going and going. And by the end of the movie I just looked like hell.”

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And he says he hasn’t been able to look at a can of tuna fish since: “I don’t ever want to see tuna again.”