"That didn't work like I wanted it to go," Cahill said of dropping weight for last season.
Rather than improve his performance on the mound, Cahill wound up going 8-10 with a 3.99 ERA while dealing with some injury and mechanical issues.
So this offseason, Cahill focused more on strengthening his legs and less on how much he weighed.
"I think it's overrated," Cahill said about dropping weight. "I'm just trying to eat healthy when I can."
Steve Gilbert is a reporter for MLB.com. Read his blog, Inside the D-backs, and follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.