The Core Diet Blog

Amanda Cassell

Ironman Triathlete, and Registered Dietitian

Amanda Cassell

Registered Dietitian


Amanda has been a registered dietitian since 2002, after she graduated with a Bachelor's degree in Food, Nutrition, and Dietetics from Mississippi State University. She completed her dietetic internship at St. Dominic Hospital in Jackson, MS. She's now working with QT2 and the Core Diet to bring her nutrition knowledge to her passion for triathlon and endurance sports.

Amanda is also the president of the Mississippi Heat Triathlon Team. Amanda has helped the team grow from a very small number to over 200 triathletes. Beginning her training years ago with no background in swimming or biking when she first started triathlon, she enjoys watching the passion grow in others as they train for their first triathlon! She has also learned over the years how extremely important nutrition is to peak performance.

Amanda has become an accomplished athlete over the last 5 years with over 12 marathon finishes, including qualifying for the Boston Marathon multiple times, as well as the New York City Marathon. Amanda is a 2x Ironman triathlete, competing at Ironman Florida in 2008 and Ironman Canada in 2010.

The Game Changer – Nutrition Case Studies

As a registered dietitian (RD), I have always known that nutrition was important for health, disease prevention, and weight loss. Throughout my college years, and during my dietetic internship, this was stressed incessantly, time and again. Clinically, I had learned a great deal of useful information, but my specialized education had never focused specifically on sports-related nutrition.

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