Sauer Puss is a 75-page book exploring the intersection of fermented foods, gut microbiome health, and hormonal cycle physiology through an accessible, practically oriented guidebook for women. Drawing on research into the estrobolome, β-glucuronidase activity, enterohepatic estrogen recycling, and the gut-vaginal axis, the book details emerging science on gut-hormone communication and pairs it with hands-on instructions for fermentation at home.

This information is incredibly relevant as science is now finally beginning to understand more about women’s health. Supporting the body through diet is also a central theme of my nutrition education. Throughout my studies in the nutrition field, I have seen how far-reaching wellness and health truly are. There are many systems at play, many of which are outside of our immediate control. Through small and empowered actions, such as intentional eating and cooking, we can take back some power and agency.

This book is about making complicated science feel understandable and connecting it to the wisdom of the female body. In this way, fermentation goes beyond just being a kitchen skill. It becomes a way of understanding and supporting our bodies from the inside out.

Sauer Puss is composed of three parts. It opens with the science, covering how gut bacteria and hormonal cycles are more connected than most of us realize. From there, it moves into a hands-on fermentation guide. I wanted readers to learn simple methods and feel confident when attempting each recipe themselves. Using nothing more than mason jars and other simple tools, I walk through numerous base recipes, including sauerkraut, yogurt, tepache, lacto-fermented vegetables, and kombucha. Troubleshooting tips and simple ratios make the process feel approachable rather than intimidating. The final section is where the science and technique come together with thirteen bonus recipes. Here, we explore ways to enjoy home ferments through balanced and nourishing meals.

May we nourish, honor, and learn together.

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Josephine Shadle