ROAR by Stacy T. Sims, PhD

ROAR by Stacy T. Sims, PhD


How to match your food and fitness to your female physiology for optimum performance, great health and a strong, lean body for life.

“Women are NOT small men. Stop eating and training like one.”

This statement really got my attention.  I am an active female and I always have been. NEVER has a coach of mine (female or male) discussed the impact of my hormones on my performance.  I have always been trained exactly the same as the boys and completely ignored my menstrual cycle.  I went on the pill as soon as I could, so I could just “skip it” if I had a big event, and definitely never talk about it.

I have a degree in Exercise and Human Movements.  The differences in men’s and women’s physiology were NEVER mentioned in my training.  They did not talk about women, because we are complicated.  99% of studies on diet and training are done on men.  The results of these studies are then broadly picked up and applied to everyone by the fitness industry.  Most nutrition products and training plans are therefore designed for men.  It is no wonder that so many female athletes struggle to reach their full potential.  It is about time we talked about periods, the differing recovery needs, hormone phases and training capacity and female specific nutrition.  All I can say is after reading ROAR, I feel like so many things just make sense!

Have you ever felt that some days you are just “flat” and can’t go as hard or far or lift as much? Have you tried diets and got no results? Ever realise that you are more intolerant to the heat right before your period?  Have you developed stubborn belly fat that you just cannot seem to shift no matter what you do?

This book is enlightening and empowering to any woman trying to understand her body and achieve her goals. ROAR was written specifically for active women.  It is a comprehensive, physiology-based nutrition and training guide.

Women’s physiology changes over time. Stacy touches on the use of the oral contraceptive pill, the adolescent athletes, and has devoted chapters to staying strong and active through pregnancy and menopause.

It includes meal plans, recipes to get you started as well as core strength, mobility and stability exercises.  Stacy talks a lot of the importance of our bone health and muscle mass maintenance.  She points out “Strong is not only sexy, it’s essential!”

Who is Stacy?

She served as an exercise physiologist and nutrition scientist at Stanford University from 2007 to 2012, where she specialised in sex differences of environmental and nutritional considerations for recovery and performance.  She is a founding partner of the Wild AI app, an app for women to track their cycles whether they are on birth control or not and including peri-menopausal and post-menopausal women.  The app then assists you to train, fuel and recover based on your female physiology.  She is also a team and solo athlete herself, competing in rowing, cross country running and ironman competitively. Stacy fuels herself with a plant-centred approach, however, she believes in personal choice on whether you include meat or not in your diet.

I have a copy of this book in my office for anyone who would like to loan it.

I hope you enjoy it as much as I have!



Here is a 13 minute TED talk from Stacy to see if this book will resonate with you:

A link to the Wild AI app Apple:

You can follow her on Instagram:

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