Performance Nutrition Professionals to Know 2025

On the quest to find the best way to forever health& fitnessExercise Physiologist (ESSA), Nutritionist, Strength and Conditioning Coach (ASCA), Sports Coach (SMA), Personal Trainer, FitGenes practitioner, Matrix Fitness Australia master trainer

As a NASM Certified Nutrition Coach (CNC) at Same Day Supplements, I specialize in providing science-backed, personalized nutrition guidance to help individuals achieve their health and fitness goals. With expertise in dietary planning, supplement strategies, and performance nutrition, I work to empower clients with practical tools for lasting results. My approach blends evidence-based knowledge with real-world application, ensuring sustainable habits that support both everyday wellness and peak athletic performance.

I’m Stephanie Hnatiuk, Registered Dietitian, Running Coach/Personal Trainer, and the creator and host of The Fuel Run Recover Podcast. I specialize in breaking down the science of sports nutrition and running performance into clear, practical strategies runners can use every day. With more than a decade of experience working with endurance athletes, I help runners optimize their performance and body composition using an evidence-based, data-driven approach. My work has been featured across multiple media platforms, including television, print, and digital outlets. I’ve provided expert commentary for local and national TV news segments, appeared in national and international running publications, and contributed to numerous health and performance articles focused on nutrition, weight loss, nutrition, hydration science, and the unique needs of endurance athletes. I’ve also been interviewed as a guest on a variety of podcasts within the running, fitness, and nutrition space, offering insights on everything from marathon nutrition strategies to helping runners reach their weight loss goals. As an athlete myself, I bring a relatable and grounded perspective to every interview and partnership opportunity. My background includes thousands of hours of 1:1 work with runners, extensive experience interpreting genetic nutrition testing results, and years of speaking at workshops, webinars, and corporate wellness events. I’m known for translating complex scientific concepts into engaging, easy-to-understand guidance, something my podcast audience consistently praises and that has helped The Fuel Run Recover Podcast grow into a trusted resource for runners seeking reliable, actionable information. When I’m not recording or speaking, you’ll find me training for my next race or creating educational content for my online community at @steph.the.runners.dietitian.

I’m a qualified Nutritional Therapist and Personal Trainer, specialising in realistic, science-based nutrition and lifestyle coaching. My approach is designed for busy lives, looking at how you can make health simple and realistic. I’ve been through my own health journey and have been running my own nutrition practice for over a year. I specialise in female health, hormones, gut health and, burnout. I help my clients address all of these concerns whilst still living fulfilling lives.

Certified nutritionist and fitness trainer and founder of Quarter to Fitness, a women-focused wellness brand promoting sustainable fitness and balanced nutrition for women 25+.

Ever wondered where to turn for expert insights on nutrition and brain health? I am Dr. Jenna Stedman, a dedicated Cognitive Performance Dietitian on a mission to enhance mental performance and promote optimal brain health through innovative nutrition strategies in my Mindful Nutrition Program. As a highly organized and motivated professional, I specialize in conducting comprehensive dietary assessments, personalized clinical counseling, creating and delivering engaging nutrition education programs, and utilizing my expertise in analyzing body composition and clinical labs. I am a dynamic and engaging speaker, sought after for wellness events where I passionately share insights on nutrition strategies for cognitive enhancement and overall well-being. I am the proud founder of Master Nutrition Lab, a groundbreaking platform committed to providing you with the essential skills and knowledge to optimize your brain health through strategic nutrition. Join me on this journey toward a sharper, healthier mind.

Dr. Rimas Geiga is a distinguished professional with a diverse skill set, serving as a Medical Doctor, Registered Dietician, and Clinic Nutritionist. With a solid foundation in healthcare, he plays a pivotal role as a private advisor to a consortium of companies operating in the health and wellness sector, offering valuable insights and strategic guidance. In addition to his advisory role, Dr. Geiga is actively engaged in hospital work, bringing his expertise to the forefront of patient care. His commitment to providing quality healthcare is evident in his contributions to the medical field, where he tirelessly works to enhance the well-being of those under his care. Beyond his medical pursuits, Dr. Geiga finds joy in various hobbies that contribute to his well-rounded personality. An avid enthusiast of culinary arts, he explores the world of flavors through his cooking endeavors. Dr. Geiga also embraces an active lifestyle, indulging in cycling adventures that not only promote physical fitness but also reflect his passion for outdoor activities. Wine tasting stands out as another of Dr. Geiga's interests, where he enjoys unraveling the complexities of different varietals and appreciating the artistry behind each bottle. His love for travel allows him to explore diverse cultures, further broadening his perspectives and enriching his experiences. Dr. Rimas Geiga's multifaceted professional background, combined with his dedication to health and wellness, showcases a holistic approach to his career. His commitment to patient care, coupled with a vibrant array of hobbies, underscores his well-balanced and dynamic presence in both the medical and personal spheres of life.

As a Registered Dietitian I am trained in all aspects of nutrition, from the biochemistry of nutrients to the social & cultural factors that influence food choices. I provide nutrition coaching as well as medical nutrition therapy to help manage chronic diseases such as diabetes, heart disease, & obesity using the latest scientific evidence. My work has been featured in outlets such as Women's Health, Reader's Digest, Business Insider, Popsugar, Eat This Not That, SRQ Magazine, Sarasota Magazine, SNN, & more.​ Experience: Bright Body Nutrition, Owner & Registered Dietitian Sarasota Memorial Healthcare System, RENEW Lifestyle Medicine Program Coordinator Education: Tulane University, RDN Florida State University, BS Additional Certifications: Integrative & Functional Nutrition, DIFM Lifestyle Medicine Coaching, ACLM

I’m Gabe Sadowsky, founder of Nutrition On The Go, a rapidly growing supplement brand focused on single-serve protein and creatine packets for travel and daily consistency. With a degree in Exercise Physiology, experience as a fitness model and trainer, and hands-on expertise scaling a direct-to-consumer wellness company, I speak from both the science and business sides of fitness; from formulation and branding to growth and consumer behavior.

Ashley Kitchens, MPH, RDN, LDN, is a nationally recognized plant-based dietitian, spokesperson, and nutrition consultant. Ashley founded her company "Plant Centered Nutrition" with the intention of providing approachable plant-based nutrition information to her clients, community, and media audience. Ashley is regularly seen in national media outlets such as Fox News, VegNews, Vegetarian Times, Eating Well, The Times Weekly, Forbes, Newsweek, and Health.com, providing comments and education on various nutrition related topics. She is a trusted source with over 10 years of experience practicing as a plant-based dietitian. She also partners and collaborates with plant-based friendly brands through social media, speaking engagements, her podcast, and many more platforms. Ashley grew up on an Angus cattle farm in small-town Indiana. As you might guess, meat and dairy were a big part of daily life. Unfortunately, so were GI issues like chronic constipation. For years, Ashley was told to manage her issues with medication instead of considering the food she was putting into her body. Ashley earned her Masters of Public Health and Nutrition from the University of North Carolina at Chapel Hill and became a registered dietitian in 2012. But, even after all that, her GI issues didn’t completely go away. It wasn’t until she did personalized research to dive deep into her own life and her own eating habits that she noticed a significant change. For her, this meant transitioning to a plant-based lifestyle. After that transition, she knew there were others who could benefit from a diet filled with more plants. She also knew it was critical for the coaching they received to be based on a deep understanding of their unique situation. That’s when she realized why she became a dietitian. Ashley made it her mission to help others transition to a plant-centered way of eating through a holistic approach and intuitive eating practices. Let's connect: Instagram: @plantcenterednutrition Pinterest: Plant Centered Nutrition Facebook: Plant Centered Nutrition Podcast: Plant Centered and Thriving Youtube: Plant Centered Nutrition

I'm not your typical nutritionist. I teach busy women science-based tools, to self-manage their energy, focus, weight, gut, and hormone health ...so that they look, feel, and work well. I offer science-based Nutrition and Lifestyle advice that's been proven to work. 1:1 consults, on-line classes, and as a keynote speaker. In organisations, I speak on all thing's wellness (Work + Well series). Curated for professionals these are designed to empower people with the tools they need to stay well. Current seminars are: . Fuel your success (How to get the energy you need to succeed) . Stress RX (Resilience Remedies) . Work-Life-Hormone Balance (Female-specific advice for all ages including Perimenopause & beyond). I do all of this while continuing to contract in senior Project roles - so I live what I teach daily. You'll also find me at the Auckland Executive Club as President in a volunteer role - a not-for-profit club that exists to develop women of all ages, groups, industries and backgrounds in business.

Alisia Agostinelli, RD, is a registered dietitian/nutritionist in Montreal. A graduate of the University of Montréal and HEC Montréal, she specializes in using evidence based data to find practical adjustments that make a difference to her clients health. She uses a non-diet, weight-inclusive approach in her nutrition therapy practice. Alisia is an active member of her community and is implicated in numerous projects aimed at increasing access to health care for all.

Plant-based raw food expert with 16+ years of personal practice backed by 21+ years of medical records. Seven-time marathoner. Founder of Raw Foodiest coaching platform. Publishing IN NATURE WE TRUST manifesto March 2026. I teach energy-based health principles grounded in real-world results, not recipes.

Peter Brukner is a specialist sports and exercise physician with a special interest in nutrition. Peter is the founding partner and Chair of the not-for-profit charity SugarByHalf, and the app-based program Defeat Diabetes. Peter is the founding partner of Olympic Park Sports Medicine Centre in Melbourne and Professor of Sports Medicine at Latrobe University. A founding Executive Member of the Australasian College of Sports Physicians, he served two terms as President and played a key role in establishing sports medicine as a medical specialty in Australia. Peter is the co-author of the widely used text book Clinical Sports Medicine and has been team physician for professional football clubs as well as national athletics, swimming, soccer and men’s hockey teams including Olympic and Commonwealth Games. Peter was the Socceroos Team Doctor at the 2010 World Cup in South Africa, Head of Sports Medicine and Sports Science at Liverpool Football Club from 2010-2012 and Australian cricket team doctor form 2012-17.

I’m Karen E. Todd, RD, CSCS, EP-C, CISSN, a Registered Dietitian and Strength and Conditioning Specialist dedicated to sharing evidence-based dietary supplement information and education. My specialty is in Nutrition and Exercise Performance Communications, providing expert insights to both media and consumers. I serve as a Nutrition Communicator, Speaker, Spokesperson, and Brand Consultant. As The Supplement Dietitian, I’m here to help you navigate the world of nutrition and supplements with confidence and clarity.

I’m a registered clinical dietitian and transformation coach who helps busy professionals lose fat and build muscle through evidence-based nutrition and training. My programs have been featured in Business Insider, GQ, and Esquire, and I’ve coached over 180 clients globally—including high-level executives, founders, and frequent travelers.

As I discovered the power of nutrition and functional medicine to address my own personal health issues, I became inspired to learn the biochemistry behind it all and share what I've learned with those who suffer from chronic health conditions. My specialties and professional interests include: IBS/IBD, autoimmune disease, hormone nutrition, and food sensitivities and intolerances. I take a functional/integrative approach to nutrition which includes advanced GI and food sensitivity testing methods, nutrition counseling, custom meal plans, and supplement therapy as needed.

I have received my Master's Degree in Human Nutrition, as well as completed my undergraduate degree in community health and athletic training. In 2019, I was chosen to be a board member of the Minnesota Board of Dietetics and Nutrition, currently, I am the sitting Vice-Chair. I have been working in the Functional Medicine field for over a decade. My experience expands a myriad of populations and needs. Areas of interest include but are not limited to; digestive health, female hormones, anxiety, and eating disorders. I am passionate about healing the body through nutrition, by facilitating detailed nutrition consultations with an emphasis on the root cause of the disorder and/or disease in the body. I have taught several in-house and corporate classes, as well as, co-host a weekly radio broadcast.