The Heart Behind Fiat Institute
Meet Jamie Rathjen
Hi, I'm Jamie! I'm a wife, mom of four, lifelong learner, and passionate advocate for women's health. My journey began at 26, newly married and pregnant, during a season of prayer and discernment that led me to my own Fiat—a yes to God's invitation to use my gifts in service of others. Since then, I've become a FertilityCare Practitioner, founded and directed Guiding Star Cedar Valley (2016–2020), earned a master's degree in Community Health Education, and worked alongside NaProTechnology physicians. My graduate research explored the barriers medical professionals face in sharing fertility awareness methods with their female patients.
I've always loved learning, asking questions, and connecting the dots. My interests span women's hormones, functional health, root-cause approaches, natural wellness, nutrition, and the many ways our bodies work together. I'm also a trained Charism Coach, with a passion for helping women recognize their gifts and use them in service of others. In 2020, I co-founded The Hormone Genius Podcast with Teresa Kenney, WHNP, and in 2021, founded Fiat Institute, where our team now educates, trains, and mentors women to become knowledgeable, compassionate hormone health coaches and educators.
My Catholic faith is a central anchor in this work. It shapes how I understand the dignity of the human person, the beauty of the female body, and our responsibility to care for one another. I believe women's health education must go beyond symptoms, hormones, and charts. It requires seeing the whole woman, honoring her experiences, and approaching the deeply personal realities of fertility and reproductive health with tenderness, dignity, and care. At Fiat Institute, this conviction is at the heart of how we teach and train women.
"Throughout my work with women, I've come to realize that a chart is never just a chart, and a cycle is never just a collection of data. Behind every chart is a woman with a story—her hopes, questions, struggles, joys, and sometimes her deepest sorrows. Our fertility is such an intimate part of our human experience, and it deserves to be approached with tenderness and care. I believe women need more than someone who can interpret their charts; they need someone willing to see them, listen to them, and walk alongside them. This is the heart of accompaniment, and it's the kind of care I hope to cultivate in every woman we train."
Jamie Rathjen
Founder of Fiat Institute | Co-host of The Hormone Genius Podcast
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