My passion is to help others create sustainable habits that improve their health and quality of life.

Marley Oldham Carnes, Owner, Registered Dietitian Nutritionist

Marley has helped hundreds of people transform their lives through improved fitness and realistic nutrition strategies that improve health and overall wellbeing. She is a Registered Dietitian Nutritionist with a background as a Certified Strength and Conditioning Specialist and CrossFit Level 2 Coach. She holds Bachelors of Science in Dietetics from Texas A&M University, a Masters in Nutrition and completed an intensive professional internship and passing of a national board exam.


She had the honor of serving our military members deploying as a civilian on board the USS Harry S. Truman as their Navy “Fit Boss”. She met her husband, John Carnes, in Yokosuka, Japan at the CrossFit gym on base where she was the Navy Fitness Director. She now runs Marley Nutrition and Fitness based in her hometown of Frisco, Texas. She works as a medical provider for nutritional counseling with a focus on fueling for optimal performance, the importance of eating patterns and mental health, and specializes in weight management. Her passion and commitment is to motivate and help others implement realistic and individualized healthy habits that are sustainable and enjoyable!

I love helping people discover ways to properly fuel their bodies, while also making delicious, satisfying meals. 

Alana Cumber, Patient Care Coordinator & Accountability Nutrition Coach


Missy believes that through practical steps with nutrition and fun, effective movement, everyone can reach their goals! Outside of nutrition and fitness, Missy is an active investor and Realtor®, volleyball player, and pet-lover!

Missy Croyl, Clinician, Registered Dietitian Nutritionist
Certified Personal Trainer, 
Yoga Instructor