What's that saying? You are what you eat? More like you are what you THINK you're eating.

Get ready for a food reality check with Dr. Jonny Bowden. He's known as the "nutrition myth buster," and he's going to change how you look at food in 2020.

Dr. Jonny is a nationally known nutrition expert and psychologist. He's written 15 books and has appeared in publications such as "O, The Oprah Magazine" and "GQ."

But he wasn't always so healthy and he wasn't always a doctor. His career started on the road as a musician where he lived what he describes as, "100% the rock 'n' roll lifestyle." That life was great until it wasn't. And that's when Dr. Jonny discovered that working out and eating well have their merits. He's been singing that song to anyone who will listen ever since.

On this Dying to Ask:

• Why if your 2020 resolution was to cut out (fill in the blank food,) you've probably failed already