Hi! I’m Liz Rook.

I absolutely love helping people live their best lives. The Thrive Arena was born out of this passion. I consider it my honor to assist you on your journey. I started as a nutrition coach over 6 years ago with experience and expertise in both 1:1 and group settings. I have obtained certification from Precision Nutrition to assist me in my skills. I also have special interests in the psychology of behavior change, emotional eating, and how lifestyle (especially nutritional choices) relates to health and disease. On the side, I practice as a rheumatologist.

I grew up on the east coast and was a competitive gymnast through college. Currently, I stay active by hiking, trail running, snowboarding, dabbling in Crossfit, and pretending to mountain bike with my gorgeous husband on the Western Slope of Colorado. I also love to read, bake, and eat!

What People Say

“Liz pushed me to feel my feels and get to the root of my emotional eating. It’s a great feeling to look back and see how much her help changed me for the better. A change that is permanent. If you are looking for a real mindset change, work with Liz. You will not regret it.”


“I started working with Liz when I got pregnant with my second child. She helped me work through food choices and non-food coping mechanisms to manage my anxiety. I now feel comfortable in my skin. Liz taught me to be proud of my body and celebrate it”.


“I just wanted to say if you are on the fence about hiring Liz as your coach that you should jump off now! I came to her after working with several different coaches without any great results. I worked with Liz for a year and now am maintaining my goal weight. She is the best”.


Get to your goal today.

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