Exercise Physiologist & Women's Health Expert; Author of "ROAR" & USA Today Bestseller "Next Level"; Senior Research Associate at Sports Performance Research Institute New Zealand

New Zealand
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Dr. Stacy T. Sims Biography

Dr. Stacy T. Sims, MSc, PhD, is an exercise physiologist and nutrition scientist specializing in women's physiology in sport and health. Sims earned a Bachelor of Science in exercise physiology and metabolism from Purdue University, a Master of Science in exercise physiology and metabolism from Springfield College, and a doctorate in exercise physiology and nutrition science from the University of Otago in New Zealand. A former bike racer and triathlete, Sims has held academic positions at Stanford University and Auckland University of Technology, where she writes and speaks on exercise and fitness practices for women.

Sims is known for challenging the lack of research focused on female athletes in sports science. Her work addresses the gap in exercise nutrition and performance research for women, emphasizing how estrogen influences metabolism, recovery, and endurance. She has directed research programs at Stanford University, the University of Waikato, and Auckland University of Technology, where she serves as a senior research associate at the Sports Performance Research Institute New Zealand. Sims has published more than 100 peer-reviewed papers and several books, and is a frequent speaker at professional and academic conferences, including those by USOC and USA Cycling.

At Stanford, Sims translated her research into accessible resources for the public, including consumer products and the book "ROAR," which explains sex differences in training and nutrition across the lifespan. Her follow-up book, "Next Level: Your Guide to Kicking Ass, Feeling Great, and Crushing Goals Through Menopause and Beyond," became a USA Today bestseller. Her "Women Are Not Small Men" TEDx talk also addresses the need for sex-specific approaches in exercise and nutrition.

In addition to her academic and literary work, Sims has contributed to coaching, consulting, and digital education. She has served as a consultant for brands such as Nike, WHOOP, and Tonal, and has collaborated with sports organizations including USA Cycling, World Tour Teams, and Olympic programs to develop performance strategies for women. Sims supervises doctoral students, writes academic papers, and serves on advisory boards for companies including Tonal Strength Institute, WILD.AI, and EXOS. She also develops online learning materials focused on women training with their physiology throughout the lifespan.

Sims' contributions to sports nutrition and exercise physiology have established a new niche in the industry, focusing on sex differences in training, nutrition, and health. Her work informs elite athletes, medical professionals, and active women, providing evidence-based guidance in women's health and performance.

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Speaker profile last updated by AAE Talent Team on 07/27/2026.

Dr. Stacy T. Sims Videos

Stanford Scientist: The Truth About Weight Loss Drugs

Stanford Scientist: The Truth About Weight Loss Drugs

Dr. Stacy T. Sims is an internationally recognized exercise physiologist and nutrition scientist known for her pioneering research.

Stanford Scientist Gives Her Honest Opinion

Stanford Scientist Gives Her Honest Opinion

Dr. Stacy T. Sims is an internationally recognized exercise physiologist and nutrition scientist known for her pioneering research.

Dr Stacy Sims - Menopause Nutrition and Female Physiology

Dr Stacy Sims - Menopause Nutrition and Female Physiology

Dr. Stacy T. Sims is a Senior Research Scientist at the University of Waikato. She is an applied researcher innovator and entrepreneur.

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Dr. Stacy T. Sims is a keynote speaker and industry expert who speaks on a wide range of topics. The estimated speaking fee range to book Dr. Stacy T. Sims for your event is available upon request. Dr. Stacy T. Sims generally travels from New Zealand and can be booked for (private) corporate events, personal appearances, keynote speeches, or other performances. Similar motivational celebrity speakers are Chaunté Lowe, Dr. Sharon Malone, Lisa Leslie, Dominique Dawes and Koya Webb. Contact All American Speakers for ratings, reviews, videos and information on scheduling Dr. Stacy T. Sims for an upcoming live or virtual event.

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