• Phone 417-720-3670
  • info@AchievingYourBest.net
  • 1311 E. Republic Road Springfield, MO 65804

About Us

We Offer A Healthier Lifestyle.

Cassie Dimmick, MS, RD, CSSD, LD

Is a registered and licensed dietitian, certified specialist in sports dietetics, ACSM certified health and fitness instructor, and RRCA certified running coach.

With her knowledge and background, she is the expert that you can count on to give you accurate, up to date, research backed information that gets results.

Cassie started her nutrition journey at Texas A&M University where she was a student and struggling with her weight. She tried all of the fad diets and ended up more confused than ever.

Her senior year, she realized that she wanted to learn the science behind what your body really needs so she went ahead and graduated with her B.S. in Microbiology, and went back the next semester to get her nutrition degree.

Cassie Dimmick, MS, RD, CSSD, LD

CEO & Founder

She graduated with a B.S. in Nutrition and went on to get her Masters Degree in Nutrition, along with doing a dietetic internship at the VA Hospital in Houston, Texas. Her passion has always been wellness and helping people prevent disease and feel great, so she chose to work at a fitness center, where she gained valuable experience being both a dietitian and personal trainer for 6 years.

Her fitness journey started in college as well where she ran her first 5K and realized that she enjoyed the competitive part and the feeling of crossing the finish line. There was also a realization that this could be a motivator for continuing exercise from college into adult life.

At her first job, she was mentored by an elite runner and other trainers who encouraged her to try a marathon. She ran her first Houston marathon in 4 hours and 24 minutes and was hooked.

With her own goals as an endurance athlete, and finding her niche as a dietitian that works with athletes, she was able to learn more and more about how nutrition improves athletic performance. She became board certified in sports nutrition, which requires both experience in the field and passing a board exam. She also became a running coach, so she had all the pieces of the puzzle covered. With her new expertise, she was able to do her second marathon in 3:38, shaving off about 45 minutes from her previous time and qualifying her for the Boston marathon.

In 2007, she decided that she wanted to start her own business. She started a LLC called “Achieving Your Best” and has settled in Springfield Missouri. She helps people locally and globally through online coaching and nutrition.

Call her today to learn how you can achieve your best and meet your health and fitness goals!
With her expertise, she can help change your life just like it changed hers!

Why People Choose Us

Integrative Wellness

Nutrition Therapy

Healthy Daily Habits

Functional Fitness and Conditioning

Fueling for Performance

Recover Stronger

Meet Our Team