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YOUR LEGS SHOULD DECIDE YOUR RACE.
NOT YOUR GUT.

Help for runners and endurance athletes struggling with bloating, cramping, nausea, urgency, diarrhea, reflux, or unpredictable digestion during training and racing.

Dr. Lexi Lain
Naturopathic Doctor • Triathlete • 3x Half-Ironman Finisher

Outdoor sports photography of a female athlete running in a triathlon race. She is wearing a pink and black suit and holding a water bottle on a sunny day.

Runner's gut may show up on race day...

Race-day Diarrhea
Urgency & Cramping
Bloating & Nausea
Reflux & Refueling
Food & Gel Intolerance

What Clients Say About Working With Dr. Lexi

“If you have digestive issues that impact your daily life (like I DID) and don’t want to just take medicine to “cure” the symptoms, Dr. Lexi is your person! Her approach is client-centered. She listens, is thorough, informative, and available to me/her clients. Dr. Lexi created a plan for me that started with ordering a series of tests to help uncover the root of my digestive issues. "

Kelly

“Dr. Lexi is a gem! She's helped me with two separate issues now...gut and hormone health. She listens, makes feasible, attainable, and wise suggestions. She is always available for questions and concerns. I couldn't recommend her more!

Marsha

“This program has been amazing! It has been life changing for me. I started with Dr. Lexi feeling sluggish, bloated, high anxiety, etc. After this program, I am having huge successes with relationships, lower anxiety, more energy, clearer mind, etc. I highly recommend Dr. Lexi and her program.

CF

The Runner’s Gut Method™

A 4-stage clinical framework designed to fix digestive issues before they interfere with your performance.

01

Investigate

Identify the root causes of your digestive symptoms through clinical evaluation and functional testing.

02

Repair

Create a personalized gut-health strategy to address underlying contributors and restore balance.

03

Train the Gut

Practice fueling, hydration, and timing during your training cycle to build tolerance and confidence.

04

Race With Confidence

Develop a personalized race strategy based on what has actually worked in your training environment.

Dr. Lexi Lain

Dr. Lexi Lain is a Naturopathic Doctor with over 15 years of clinical experience and a 3-time Half-Ironman finisher. She combines clinical expertise with firsthand endurance training to help athletes create health strategies that work in the real world.

The Runner's Gut Decoder Guide

A pattern guide to better understanding why your gut falls apart during long training days and race day. 

The Runner’s Gut Journal

Stop Training Around Your Stomach.

You've trained your heart, lungs, muscles, and mind. Your gut deserves a training strategy too.

Your Legs Should Decide Your Race. Not Your Gut.

Help runners and endurance athletes identify what is driving digestive problems during training and racing and build a personalized strategy for gut health, fueling, and race-day confidence.

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