"As soon as I finished filming 'Twilight,' I knew I had to get to work right away; there could be no waiting involved. The day I finished 'Twilight,' I came home and started bulking up. For 'New Moon,' I'm 30 pounds heavier than I was in 'Twilight,'" he told Interview magazine's August issue.
"I was in the gym five days a week, two hours a day. At one point, I was going seven days straight. I had put on a lot of weight, and then I started losing it drastically, so I was worried. It turned out I was overworking myself," he said. "My trainer told me that I couldn't break a sweat, because I was burning more calories than I was putting on."
"The hardest thing for me was the eating. At one point I had to shove as much food in my body as possible to pack on calories. My trainer wanted me to do six meals a day and not go two hours without eating. If I would cheat on eating one day, I could tell, I'd drop a few pounds," he continued.
Despite the hurdles, all his hard work paid off. Taylor was asked back for the second movie and also got a reason to buy a new wardrobe.
"I grew out of a lot of my clothes," he told the mag. "I went from a men's small to a men's large."
And is Taylor now turning more heads on the street with his new physique?
"I don't know. I should pay more attention to that," he said. "I hope so."
"New Moon" debuts in theaters on November 20.