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Feel better. Start with the right information and resources.

These powerful, practitioner-backed eBooks have helped thousands finally get answers - and relief - for symptoms like bloating, reflux, fatigue, and hormonal imbalance. Trusted by thousands of readers. Evidence-based, affordable, and immediately actionable. Looking for our most trusted products? Scroll to save!

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Katie's Functional Medicine eBooks

"I could only say that they saved my life, I’m not even exaggerating. I suffered gut issues for years and no matter what I did they kept coming back, elimination diet, expensive supplements, stress control, among many other things. I purchased all of the ebooks and they are not only easy to read and understand but they have key information, cause it is not magic, you need to put the work but having the right approach makes all the difference. Will definitely recommend them!!!" 

Zyanya Aguirre

"I can’t recommend GHT enough. I found their podcast and fell in love with them just by listening to them! Since then , I have purchased multiple e books which are so informative in a way that you can clearly comprehend !!! They have helped me through various issues , with constant support and encouragement working with them one on one instead of turning to conventional medicine ." 

Jahna O'Connor

Katie's Most Trusted Products

Function Health

100+ lab tests included:

-Go deeper with -Add-On Tests including MRIs

-Complete testing—often in one 15-minute lab visit

-2,000+ Quest Diagnostics locations to choose from

-No insurance needed

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Fullscript

Fullscript a wide array of the most trusted, science-back and effective product and supplement brands on the market.

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Purity Coffee

After passing rigorous third-party testing for mold and contaminants, Purity's regeneratively farmed, organic, specialty-grade coffee beans undergo a customized roasting process to optimize the antioxidant level and nutrients in the coffee.

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Mira

Tracks 4 key hormones: LH, E3G, PdG, and FSH

-Shows your 6 most fertile days & cycle shifts

-Predicts & confirms your ovulation

-Supports you from fertility to menopause

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Lauricidin

Lauricidin, the original monolaurin, supports a healthy balance of intestinal flora and yeast, promoting a strong immune defense without destroying good bacteria.

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Paleovalley

Explore nutrient-dense, whole-food products, like grass-fed beef sticks, superfood bars, and mushroom coffees, using ancestral nutrition principles and avoiding synthetic ingredients, to support energy, digestion, and immunity.

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Want even more guidance on where to start?

A discovery call is a low-stress conversation to explore your options. Ask your questions, share your concerns, and let us help you decide if functional medicine is the right path.

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©2025 by Gut Honest Truth

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