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Registered Dietitian and Certified Personal Trainer

About Me

About Me

Welcome to my page! I am glad you are here! My full name is Kellilyn but please call me Kel or Kelli (Kellilyn is what my Mom calls me when I am in trouble). I was born and raised in Philadelphia, PA (GO EAGLES). After college, I moved to Boston, MA for 10 years and have met the most incredible people that have helped me get to where I am today. I now live in Southern California with my better half, my daughter, and pup and we sure are enjoying being outdoors all of the time!

5 Fun facts about me:

  • I have an obsession with Heinz ketchup (everything in moderation right?)

  • I have a serious fear of flocks of birds (don't ask)

  • Running is my therapy

  • Sunrises are my favorite (a nice little reminder that everyday is a fresh start)

  • I lose my car keys about 10 times a day

If I am not working, you will find me getting lost on a run, on the beach with my family, or binge watching a show on Netflix. 

Professional Bio

Kelli graduated with a Bachelors of Science in Nutrition and Dietetics from La Salle University. Prior to passing her boards, she completed 3 rounds of internship rotations focusing on community nutrition, clinical nutrition and food service. At La Salle University, she spent four years on the Division I Track and Field and Cross Country team. While working full time, Kelli decided to follow her fitness dream by completing her Masters in Exercise Science and Health Promotion.


Shortly before graduation, she passed her personal training exam from the National Association of Sports Medicine and is now applying both her nutrition and exercise expertise to her professional career. Kelli has been practicing as a Registered Dietitian and Wellness Coach since 2011. In this role, she works closely with participants to help him or her reach their individualized goals while overcoming the setbacks and obstacles that everyday life can face us with. This position has given Kelli valuable experience and she has expounded upon that knowledge through her Master’s program. She recently has received her Pre and Post Natal Corrective Exercise Specialist Certificate through the FitForBirth program.


Areas of Expertise

In her time since graduating from La Salle University, Kelli has become a NASM Certified Personal Trainer, Pre and Post Natal Corrective Exercise Specialist, and is Certified in Adult Weight Management, as well as maintaining CPR and AED certifications. She is an active member of the Academy of Nutrition and Dietetics and is involved with a variety of their specialty practice groups. She has her Masters in Exercise Science and is a USATF certified running coach. Kelli takes great effort to continually gain knowledge within the ever-changing healthcare field.

NASM Certified Personal Trainer

Certified in Adult Weight Management

Pre and Post Natal Corrective Exercise Specialist

USATF certified running coach

Masters in Exercise Science 

Member of the Academy of Nutrition and Dietetics

"The biggest challenge that I face as a trainer is teaching others how to be patient with their journey. Many people want quick fixes or instant results. I believe in healthy lifestyle habits. Therefore, the challenge is explaining to clients that results will not happen overnight. Patience is key and trust your training and it will all fall into place."

- Kelli Fierras

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