Dr. David Wiebe, MD

Board-Certified Emergency Medicine & Functional Wellness Consultant

Dr. David Wiebe brings over two decades of frontline medical experience to Fit Boxx, combining traditional emergency care with integrative, evidence-based insight. He earned his medical degree from the University of British Columbia, completed his Emergency Medicine residency at Denver Health, and is board-certified by the American Board of Emergency Medicine (ABEM). He also maintains active medical licenses across several U.S. states, bringing cross-disciplinary credibility to every formulation we develop.

Dr. Wiebe has served in high-acuity ERs throughout the Mountain West and is affiliated with leading hospitals. His reputation is rooted in a balance of diagnostic accuracy, calm under pressure, and patient-centered care. He’s not just a physician—he’s a systems thinker who understands how physiology, lifestyle, and biochemistry interact in real life.

Outside the ER, Dr. Wiebe is a trusted medical advisor to a range of health, wellness, and aesthetics companies nationwide. He provides clinical oversight for IV therapy, regenerative medicine, peptide protocols, health tech, and recovery systems. This broad exposure—paired with his functional medicine training—makes him uniquely qualified to evaluate supplements not just for what’s in them, but for how they work in the body. At Fit Boxx, he ensures every product reflects: 

• Clinically relevant dosages
• Ingredient safety and synergy
• Research-backed efficacy
• Real-world applicability for both high-performance and everyday use

Jordana Tobelem, RD

Registered Dietitian & Clinical Nutrition Consultant

Jordana Tobelem is a Registered Dietitian with a strong foundation in clinical nutrition and a passion for evidence-based practice. She holds a Bachelor of Science in Dietetics and Nutrition from Keiser University, where she completed an ACEND-accredited coordinated program in dietetics. She also earned a bachelor’s degree from Florida State University in Hospitality Management with a minor in Business Administration.

For The Fit Boxx, Jordana provides nutrition insights across formulation efficacy, dosing rationale, and dietary-specific considerations. Ensuring our supplements align with real-world health goals and professional nutrition standards.

In addition to her clinical training, Jordana has worked with a wide range of wellness companies and health brands, focusing on nutrient quality, ingredient compatibility, and practical application for daily use. Her approach helps bridge the gap between cutting-edge science and everyday nutrition strategy.

Sarah Tappan, RD, LDN

Registered Dietitian

Sarah is a licensed Registered Dietitian with clinical roots in critical care nutrition and a passion for translating science into practical nutrition strategies that work in the real world. She holds a B.S. in Nutrition and Dietetics from the University of Delaware and has worked across hospitals, performance nutrition settings, and digital health platforms.

As a Consulting Nutrition Advisor for The Fit Boxx, Sarah evaluates supplement formulations, meal structures, and macro strategies to ensure that each nutrition element we deliver supports recovery, performance, and long-term consistency. She provides expert guidance on how our products align with evidence-based practice, while remaining adaptable for users at any fitness level.

Sarah’s clinical background includes leading nutrition care for ICU and surgical patients at HCA Florida Largo Hospital, where she collaborated daily with critical care teams on enteral and parenteral feeding strategies, malnutrition support, and complex case management. She currently works in telehealth nutrition counseling for Foodsmart, helping clients achieve a variety of health and dietary goals using personalized, evidence-based support.

In addition to her clinical expertise, Sarah has worked with athletes, supported community health programs, and served in performance nutrition roles, bringing a 360-degree view of how to fuel the human body under pressure.

With a deep understanding of both clinical precision and everyday application, Sarah helps ensure that every nutrition recommendation we make at The Fit Boxx is not just effective, but actually sustainable.

Riley Forbes

Consulting Nutrition Advisor

Riley holds a Doctorate in Naturopathic Medicine from the Canadian College of Naturopathic Medicine, supported by a Bachelor of Science in Molecular Genetics and Biochemistry with a minor in Nutrition Sciences from the University of Vermont. Her academic background is matched by hands-on clinical experience, with over 225 patient consultations focused on nutritional therapy, metabolic health, and systems-based wellness.

Drawing on her training in molecular biology, nutrition, and clinical medicine, Riley specializes in uncovering the underlying drivers of health imbalances—from hormonal shifts to lifestyle-related stress—and creating targeted, sustainable interventions.

She is known for turning dense scientific research into practical, real-world strategies. With a commitment to clarity, personalization, and results, Riley helps clients take control of their health with confidence and evidence-backed support.

Katie Ernst, RD

Clinical Dietitian | Patient-Centered Nutrition Strategist

Katie Ernst is a Registered Dietitian with over 15 years of experience in clinical nutrition, patient care coordination, and nutrition therapy. She earned her degree in Human Nutrition from Washington State University and has served in a variety of healthcare roles, including hospital-based dietetics, infusion care, and interdisciplinary medical nutrition therapy.

As a Consulting Nutrition Advisor for The Fit Boxx, Katie brings a well-rounded clinical lens to every nutritional component of the platform. She consults on supplement design, evaluates dietary protocols for real-world sustainability, and ensures our nutrition recommendations support both performance outcomes and long-term health.

Katie currently works part-time with MultiCare Health System, where she delivers individualized nutrition care across a broad range of patient needs. Her earlier roles included clinical liaison and account management at Option Care Health, where she specialized in coordinating care for patients requiring advanced nutrition support, including home infusion and enteral therapy.

Known for her ability to blend science with empathy, Katie approaches every nutrition strategy with the end user in mind, making sure the tools we deliver at The Fit Boxx feel just as supportive as they are effective.

Troy Hurst, PT, DPT

Consulting Training Advisor

Troy Hurst is a licensed physical therapist with a Doctorate in Physical Therapy from Carroll University. His expertise spans athletic rehab, vestibular therapy, and performance running, helping clients not just recover, but return stronger, more capable, and more confident in how they move.

As a Consulting Training Advisor for The Fit Boxx, Troy contributes clinical insight across programming, mobility, and injury resilience. His background includes work as a clinical informatics specialist, an adjunct instructor at Marquette and Carroll University’s DPT programs, and a recognized writer in the field of rehabilitation sciences.

Known for his well-rounded, client-first approach, Troy combines evidence-based protocols with a deep understanding of how training, recovery, and movement patterns all connect. Whether working with high-level athletes or everyday clients, his goal remains the same: build programs that respect the body and elevate its potential.

David O’Mahony, MSc

Consulting Training Advisor

David has over a decade of strength and conditioning experience, coaching everyone from professional athletes to everyday clients. He holds a Master of Science in Sport and Exercise Science from Lund University and a Bachelor’s in Health and Performance from Dublin City University. His career spans international sport systems, elite team environments, and applied research.
For The Fit Boxx, Jordana provides nutrition insights across formulation efficacy, dosing rationale, and dietary-specific considerations. Ensuring our supplements align with real-world health goals and professional nutrition standards.

He has coached European and World Champions through his work with the Netherlands Olympic Committee, led strength and conditioning for a professional ice hockey team, and developed performance frameworks for athletes across basketball, rugby, judo, track cycling, and more.

Today, David applies that same high-performance methodology in a consulting capacity, designing strategic, evidence-based training systems for high performers. His work blends sport science, practical coaching, and real-world adaptability to help clients train smarter, move better, and perform at their peak.

Katelyn Foeller, ACSM-EP

Consulting Training Advisor

Katelyn Foeller is a certified Exercise Physiologist through the American College of Sports Medicine, with a B.S. in Kinesiology from the University of Rhode Island. She brings a unique blend of clinical knowledge and real-world coaching experience across strength training, functional movement, and neurological rehabilitation.

As a Consulting Training Advisor for The Fit Boxx, Katelyn provides strategic feedback on training programs, ensuring each one supports progress while staying sustainable and safe for users at every level. She evaluates programming with both performance and injury prevention in mind, helping align training content with evidence-based best practices.

Katelyn’s background includes work with neurodivergent athletes, adaptive movement populations, and competitive gymnasts. Her roles have ranged from surf therapy and small-group coaching to neurological rehab consulting at Adapt Functional Movement Center. She has also developed and led programs at the YMCA, Element Training + Fitness, and multiple gymnastics facilities, demonstrating a deep understanding of how to teach movement across a wide range of bodies and abilities.

With a passion for education, she actively contributes written content and exercise guidance to support client success and confidence in their training journey.

Jayni Gandhi, BPT, CSCS

Consulting Training Advisor

Jayni Gandhi holds a Bachelor’s in Physiotherapy and is a Certified Strength and Conditioning Specialist (CSCS) through the National Strength and Conditioning Association. With over 5 years of experience and 4,600+ live online coaching sessions delivered, she brings deep expertise in movement science, rehabilitation, and performance training to her role as Consulting Training Advisor.

Jayni specializes in helping clients get stronger—without waiting for pain to “go away.” Her approach bridges the gap between rehab and fitness, integrating strength training, functional mobility, and evidence-informed strategies to support long-term resilience.

Her clinical foundation is matched by hands-on coaching skill. She views pain not as a simple diagnosis, but as a complex puzzle—shaped by movement, mechanics, mindset, and lifestyle. Whether recovering from injury, rebuilding mobility, or optimizing performance, Jayni equips clients with the tools to move better, train smarter, and feel in control of their progress.