Hi, I'm Lauren Callahan.
Nutrition Coach | Integrative Wellness Consultant |
Plant-Based Ultra Endurance Athlete
I'm a plant-based ultrarunner, business owner, student, and mother. My life requires a lot — and I have no intention of dialing it back.
What I did instead was go deeper. Rather than reducing my goals, I focused on supporting my body so it could actually meet the demands I was placing on it. Through years of working on my own gut health, foundational nutrition, and what I now call a Fiber First approach, I was able to significantly expand my capacity — more training, more output, more resilience — without running on empty.
That's what I help other women do. Not perform despite how they feel. Perform because of how they've learned to support themselves.
My work sits at the intersection of gut health, hormonal support, and real-life nutrition — grounded in data, and designed to work within the life you actually have.
Your Output Requires a Foundation.
This Is It.
You're not struggling because you aren't trying hard enough. You're struggling because the strategies you've been given (more protein, more tracking, more restriction) are working against your body, not with it.
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You're waking up exhausted after a full night of sleep. Your energy crashes in the middle of the day. Your brain won't slow down at night. You're doing everything right, eating "healthy," following the latest advice — and still feeling off.
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You've been told everything looks normal. But it doesn't feel normal.
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The real problem isn't your effort. It's that you've never been given a strategy that actually supports your body at a foundational level.
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That's what Fiber First does.
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Fiber is the starting point for gut health, hormonal balance, energy regulation, and sustained performance. When your gut is working the way it should, everything else — your sleep, your focus, your metabolism, your mood — has a foundation to stand on.
What people are saying...
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Christy Pennison, Founder & CEO, Be Inspired Counseling & Consulting, and the Practice Collab
Lauren has a remarkable ability to connect deeply with individuals and groups, creating a safe and reflective space that fosters meaningful insights. Her authentic speaking style and expertise truly resonate with her audience, leaving them empowered and inspired. I highly recommend her as a speaker who brings both heart and expertise to every workshop.
Ray Doustdar
Creator of the Deep Shallow Dive
Lauren Callahan was incredibly insightful and engaging guest. Her expertise in gut health and holistic wellness resonated deeply with our audience, making it my highest-rated event to date.
Angela Dunn
Creator of Been There Dunn That
Lauren gives real, usable advice and I learned so much from her honest approach! She is so easy to work with and anyone can apply what they’ve learned.
More Capacity. More Resilience.
No Scaling Back.
When your gut is working, your fiber is dialed in, and your body is actually supported at a foundational level, the difference shows up everywhere:
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Energy that holds steady through your whole day
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Sleep that actually restores you
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A mind that's sharp when you need it
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A body that responds instead of resists
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Moods and hormones that feel like yours again
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The resilience to keep going — without burning out
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Let’s build the foundation your life requires, so you can finally feel like your body is working with you, not against you.
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Your life is full. It's not slowing down. It shouldn't have to.
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