SCIENTIFIC ADVISORY BOARD

Dr. Bill Clark, president and founder of Natprologix, has dedicated over 25 years to advancing the dietary supplement industry at the intersection of science and entrepreneurship. Through Natprologix, he provides expert consulting services to drive innovation, helping companies not only meet regulatory standards but excel in a competitive market. In recognition of his career achievements, Dr. Clark was recently selected to be featured in The Top 100 Innovators & Entrepreneurs Magazine for 2025 by Redwood Media. This prestigious honor underscores the impact of his work and fuels his passion for innovation. Dr. Clark is also the producer and co-host of The Bioactive Nexus podcast, a bi-monthly series focused on the science of supplements and elevating industry knowledge.  Passionate about translating the science of wellness into practical solutions, Dr. Clark is driven by a vision to create products that enhance the physical and mental well-being of millions around the globe. 

Dr. Jacqueline Jacques is a Naturopathic Doctor with over 20 years of leadership experience in the medical nutrition and wellness industries. Jacqueline received her Doctorate in Naturopathic Medicine from the National University of Natural Medicine in 1997. She also holds a certificate in finance and accounting from the Kelly School of Business at Indiana University, and a specialty certification in Cannabis Science and Medicine from the University of Vermont. Jaqueline spent much of her career in the natural products industry as a founder, formulator, speaker, writer, executive, and trusted advisor.  She is the author of the book Micronutrition for the Weight Loss Surgery Patientin addition to numerous other professional publications and has spoken nationally and internationally to health professionals and the public alike. Jacqueline’s career is reflective of her cumulative experience in medicine and industry, and her consistent ability to bridge the gap between the two. 

Arthur M. Presser is a graduate of Southern California School of Pharmacy (USC) and a retired integrative pharmacist. He previously held positions as Adjunct Assistant Professor of Pharmacy Practice and Curriculum Coordinator of the Complementary and Alternative Medicine Program at USC, as well as President of Huntington College of Health Sciences. After starting out in conventional pharmacy, he switched his focus to integrative medicine in 1980. Dr. Presser provided consulting services for nutritional supplement manufacturers and operated a small retail chain specializing in dietary supplements. In 2007, he returned to conventional pharmacy practice at the community/clinic level, extending his expertise and counsel on proper and effective supplement use. He continues to consult with primary medical providers on integrating natural products into patient care and is committed to educating consumers, retailers, and health professionals alike in the safe use of nutrients and herbals to promote a higher level of wellness. 

Dr. Rosenstein is a powerful force in the health and wellness field. As a board-certified Neurosurgeon for over forty years, he developed a wellness and longevity protocol to keep him at the top of his game. With this he was able to reverse his biological age and has been helping his patients do the same in his longevity medicine practice for more than 15 years. He attended the renown Johns Hopkins University School of Medicine, then fellowshipped at The Hospital for Nervous Diseases in London before returning to the US where he has served as CEO and Chairman of Neurosurgery at North Texas Neurosurgical Consultants in Arlington since 1985. Dr. Rosenstein has also been the CEO and Chief Medical Officer of The Southwest Age Intervention Institute since 2008 and is the author of Defy Aging, focused on helping people “make the rest of their lives, the best of their lives!”  

Tim Ziegenfuss, or Dr. Z, is the Chief Executive Officer of The Center for Applied Health Sciences and past President and Fellow of the International Society of Sports Nutrition. Dr. Z is a Certified Strength and Conditioning Specialist, and a consultant to several professional sports teams, athletes and elite tactical personnel around the world. He has been quoted in Scientific American, published more than 600 articles in mainstream magazines, co-authored ~80 scientific publications and 8 book chapters, and has had numerous interviews and appearances in top 25 national print media. His research interests include nutritional strategies to maximize health and performance, adaptations to resistance exercise, and the identification of novel, naturally occurring bioactive nutrients. As a scientific advisor to the natural products market, his input has led to the creation of dozens of products that currently grace the shelves of every major retailer in numerous countries around the world.