David Montgomery has slimmed down since the end of his rookie season by changing his diet.

Montgomery had the second-most rushing yards of any rookie last season, but also averaged the second-fewest yards per carry of any back with more than 200 attempts.

"I was a lot slower than I know I was capable of moving at and it affected the game,” Montgomery said. "I kind of let myself get in the way of myself as far as what I ate last year. I didn’t really care. I was a rookie. I was just eating whatever, but now it’s definitely a main focal point in my everyday life. It’s just being sure I put the right things in my body so it can carry over to the field."