Kat Dennings Embarks on Healthy Eating Challenge

"2 Broke Girls" star is trying to break some bad habits.

— -- Kat Dennings is ready to break some bad habits. The "2 Broke Girls" star is embarking on a month-long challenge to eat healthier.

The 28-year-old actress posted a photo to Instagram marking her first day on the Fit Girls Guide's 28 Day Jumpstart, which strives to get girls and women fit through healthy eating.

Alongside a photo of her first meal of brown rice, carrots, roasted tomatoes and hummus, the actress wrote: "To explain, I realize as I've grown older (28 cough cough) that I still eat like a teenager. Candy when I'm bored at work, stress eating, snacking at night, etc, and that's completely allowed and a natural part of being a human BUT I want to start making more of an effort to put health on the front burner as I coast into the eventual dark abyss/exciting new world of my 30s."