SCIENTIFIC ADVISORY BOARD

Douglas S. Kalman currently serves as a Clinical Associate Professor in the Nutrition Department at the Dr. Kiran C. Patel College of Osteopathic Medicine, part of Nova Southeastern University in Fort Lauderdale, Florida. He is also a co-leader of Substantiation Sciences, a regulatory and scientific consultancy alongside Dr. Susan Hewlings. As a co-founder of the International Society of Sports Nutrition (ISSN), Dr. Kalman has played a significant role in advancing health and wellness in the field. Recently, he held the position of Senior Vice President of Scientific and Regulatory Affairs for the Natural Products Association (NPA). With experience at six Olympic games, he has collaborated with various teams and athletes at both collegiate and professional sports levels. A recognized expert among nutraceuticals experts, Dr. Kalman has contributed to over 400 clinical trials and research projects, published more than 100 peer-reviewed manuscripts, authored several academic textbooks, and supported research across the food, dietary supplement, and pharmaceutical domains. Additionally, Dr. Kalman serves on scientific advisory boards, furthering his commitment to advancing knowledge in these areas. Outside of his professional endeavors, he enjoys spending quality time with his family, exercising, and being of service to others.

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. As a leading figure among nutraceuticals experts, he provides expert consulting services through Natprologix 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 health and wellness. 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, supported by his scientific advisory board.

Dr. Jacqueline Jacques is a Naturopathic Doctor with over 20 years of leadership experience in the health and wellness, 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. Throughout her career, Jacqueline has been a prominent figure in the natural products industry, serving as a founder, formulator, speaker, writer, executive, and trusted advisor. She is the author of the book Micronutrition for the Weight Loss Surgery Patient, in addition to numerous other professional publications, and has spoken nationally and internationally to both health professionals and the public. As a member of various scientific advisory boards, Jacqueline’s career reflects her cumulative experience in medicine and her ability to bridge the gap between the health and wellness industry and nutraceuticals experts.

Tim Ziegenfuss, also known as Dr. Z, serves as the Chief Executive Officer of The Center for Applied Health Sciences and is a past President and Fellow of the International Society of Sports Nutrition. As a Certified Strength and Conditioning Specialist and a consultant to various professional sports teams, athletes, and elite tactical personnel worldwide, Dr. Z is highly regarded in the field. He has been featured in Scientific American, has authored over 600 articles in mainstream magazines, co-authored approximately 80 scientific publications and 8 book chapters, and has participated in numerous interviews and appearances in top 25 national print media. His research interests focus on health and wellness, specifically nutritional strategies to enhance performance, adaptations to resistance exercise, and the discovery of novel, naturally occurring bioactive nutrients. As a key member of the scientific advisory board for the natural products market, his expertise has contributed to the development of many nutraceuticals that are now available in major retailers across various countries.