The Team
Nutri-Sport & Full Potential Training is unlike anything in Des Moines! As an independent and family owned business, we have the unique blend of personal and small group training, customized nutrition programming and effective supplementation under one roof. We are more concerned with helping you achieve the results you want verses pushing some product on you. Come in and you will be blown away by the difference and what we can offer you!
We look forward to chatting with you in person soon!
Ryan and Mandee Irwin

Tasha Armstrong, B.S., CPT, Head Trainer
Tasha Armstrong, Head Trainer and owner
Tasha has been training clients from all walks of life (kids to seniors) for many years. She has a degree in Exercise and Sports Science, many certifications and was a multi-sport athlete through college. Tasha continues to compete in various competitions as well. Her many long-standing clients can attest that she is someone you would not only enjoy training with, but also meet your goals and get results!

Daira Johnston, B.S., CPT
Daira Johnston, Trainer
Daira is a weight loss specialist, plus has helped many athletes reach their goals to increase their performance. Having an Exercise Sports Science degree and being ACSM certified, Daira can help any individual reach their full potential. By being a former collegiate basket ball player, Daira knows what level athletes need to be at to perform their best. As any of her many satisfied clients will tell you, she knows her stuff and can get you where you want to be!

Ryan Irwin, BS and IFPA Natural Pro Bodybuilder
Ryan Irwin, BS, CPT, Certified Sports Nutrition Specialist, Trainer and owner
Ryan’s background is drawn from bodybuilding, wrestling and powerlifting. Having a degree in Exercise and Sports Science, in addition to being certified in both sports nutrition and personal training, Ryan’s experience is backed by continuous education. He is a professional natural bodybuilder, winning titles without the use of performance enhancing drugs and has competed in over 17 contests over the years. Ryan also is the 2010 NASA National Powerlifting overall champion and holds four national records in powerlifting as well. A specialist in adding size and strength, Ryan has helped many individuals add quality mass with strength, in addition to helping many lean up while sculpting their physiques. Contact him only if you want some serious results!
David Sitrick has an extensive background in sports specific training. He has trained himself and others on multiple levels, including soccer, bodybuilding, track, golf and football. David’s specialty is sports specific training. He goes beyond the typical trainer’s call of duty and is known to help keep his clients accountable throughout their training and nutrition. Not only does he have the first-hand background, but he is also an ACE Certified Trainer. For an edge in your training, to improve your game or to just get in shape, David can see that you achieve you goals!




