Sync Your Cycle.
Nourish Your Hormones.
Boost Your Fertility.
A science-based, cycle-synced approach to balancing hormones
and improving fertility — naturally.
What is
Fertility Fast?
Fertility isn’t just about conception — it’s about connection.
Fertility Fast helps women understand their bodies, balance their hormones, and boost their natural fertility using fasting, nutrition, and mindset tools aligned with the menstrual cycle.
Created by fertility educator Roberta Dunsmuir, the Fertility Fast method combines science and intuition to restore metabolic health, reduce inflammation, and bring your body back into harmony — so you can thrive at every phase of your cycle
A holistic approach that works with your hormones
— not against them.
Cycle
Awareness
Learn how your hormones shift through the month and how to support each phase.
Nutrition & Fasting
Use food timing and nutrient balance to improve insulin sensitivity and egg health.
Mindset & Lifestyle
Build emotional resilience and body confidence throughout your fertility journey.
Explore my Programs and eBooks
Start your Fertility Fast journey — your way.
Every woman’s fertility journey is unique. Whether you’re just starting to explore fasting and hormone health or you’re ready for a deeper transformation, there’s a Fertility Fast resource designed to meet you where you are.
Each eBook, program, and course is built on the same foundation — empowering you to balance your hormones, reduce inflammation, and reconnect with your body’s natural rhythm.
Your complete guide to fasting for fertility and hormonal balance. Understand your hormones, cycle-sync your fasting, and start healing from the inside out.
Dive deeper into fertility nutrition with over 100 hormone-friendly, cycle-synced recipes designed to support egg and hormone health.
A companion to the eBook — track your cycle, symptoms, and mindset with guided prompts and daily reflections.
Strengthen your emotional resilience and reconnect with each phase of your cycle through meditations, journaling, and visualization exercises.
Bundle and save with the Fertility Fast Collection — coming soon.
Courses & Coaching
A complete, science-backed program that walks you step-by-step through the Fertility Fast framework — combining fasting, nutrition, and lifestyle strategies with community support and guided video lessons.
For women who want personalized guidance, accountability, and fertility support. Available as part of the Fertility Fast Course + Coaching option, or as limited 1:1 spaces each quarter.
If you’re unsure where to begin, start with the Fertility Fast eBook — it’s the foundation for all programs and the perfect introduction to this transformative approach.
However you begin, you’re already taking a powerful step toward understanding your body and nurturing your fertility. Start where you feel called — everything in the Fertility Fast collection is designed to support you from the inside out.
“I finally feel like I understand my body again. Roberta’s approach helped me see my cycle as a tool, not a problem.”
— Fertility Fast Reader
“YOU’RE NOT ALONE”
Join our Fertility Fast Readers’ Community
Inside our private Fertility Fast Community, women just like you share experiences, ask questions,
and support one another on the journey to hormone harmony and fertility health.
Use access code FERTILITYFAST2025 to join.
Meet Roberta
Hi, I’m Roberta Dunsmuir, fertility educator, nutrition specialist, and founder of Fertility Fast.
After years of battling endometriosis and unexplained infertility, I discovered how aligning fasting,
nutrition, and self-care with my menstrual cycle transformed my fertility and overall health.
Now, I help women do the same — combining science and compassion to support their fertility naturally.
Ready to Begin?
Take your first step toward balanced hormones and empowered fertility.
email: [email protected]
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