My name is Allie Grantz and I am the owner of Generation Fit. My journey into health and fitness began more than 20 years ago when I took on my very first training client, ME!!  At the time, I was overweight and very unhappy. The more unhappy I became the more the scale went up. To say the least it was a vicious cycle. To end the cycle I decided to join a gym  (which was probably the scariest thing I had ever done). I took residence on an exercise bike where I observed everything in my line of vision for the next few weeks. The one thing that really  stood out to me is that none of the trainers really paid much attention to their clients. A switch flipped and I decided I was going to start studying to become a trainer.  I wanted to become the trainer that I never saw at that gym. Attentive, caring and informed. Fast forward and here I am and I can't wait to work with you!!


  • CPR/First Aid
  • NASM personal trainer certified
  • Precision Nutrition-Level 1
  • Precision Nutrition-Level 2 
  • CF-L1
  • CF-L2
  • CF-Strongman
  • CF-Kids
  • CF-Scaling
  • Autism Fitness-Level 1 certified
  • Concept 2 Rowing-Level 1 certified
  • Stages Cycling Level 1-certified
  • Stages Cycling Power-certified
  • 2016 recognized "Best trainer of the Lehigh Valley" Lehigh Valley Style magazine
  • 2018 recognized "Best trainer of the Lehigh Valley" Lehigh Valley Style magazine