17/04/2026
I am proud to introduce Inside Health - my seventh book, and without question, the most important work I have written to date.
Many of you first discovered my work through Fat or Fiction, where I challenged the myths shaping modern dieting culture. Since then, I have worked with thousands of clients and contributed to clinical research in metabolic health.
This book moves beyond the outdated idea of calories in vs calories out, and instead helps you understand your body as it truly is - an intelligent system driven by hormones, metabolism, muscle, and cellular energy.
Because weight is not the problem.
It is the symptom.
Inside, you will learn:
Why insulin plays a central role in fat storage
How muscle supports metabolism and longevity
Why food is information, not just fuel
The impact of sleep, stress, and timing on your health
How to reduce inflammation and restore energy
What true metabolic health really looks like
This is not about overwhelming you with science.
It is about giving you clarity, understanding, and control.
Whether you are already on your journey or just starting, this book will change the way you think about your health.
Because when you understand your body, everything changes.
DISPATCHED MAY 4.
Reserve your copy here:
https://astonrx.com/products/inside-health-book-pre-sale
Happy reading,
DA 😁
From bestselling author of Fat or Fiction comes Donna Aston’s long awaited seventh book. It has been fifteen years since her last release, and Inside Health may be her most important work yet. In this powerful new book, Donna reveals why health was never about calories. Instead, she explains how h...