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Monday 9am - 5pm Tuesday 9am - 5pm Wednesday 9am - 5pm Thursday 9am - 5pm

Dr. Kate Kresge

Hey there! 😊 I'm Dr. Kate Kresge
Head of Medical Education at Rupa Health
& Host at the Root Cause Medicine Podcast.

I'm passionate about helping folks learn
to find and heal their root cause 💙
so that they can thrive & be a light to the world 🌎

11/21/2025

What if your eye exam could reveal clues about your gut, your hormones, and even your longevity?

This week we’re airing a fascinating conversation with Dr. Neda Gioia, OD, CNS®, IFMCP. She’s blending optometry, functional medicine, and clinical nutrition into a science-first, whole person care model that gets her clients phenomenal results.

We dig into:
• How the gut–eye axis can sometimes help to explain eye dryness, irritation, and inflammatory symptoms that don’t respond to simple fixes
• The ways AI-powered retinal imaging may soon be used to highlight early microvascular and metabolic patterns before they show up anywhere else
• Why perimenopause and menopause can shift how your eyes feel—and what those symptoms might be pointing to
• The role of nutrients like DHA, lutein, and zeaxanthin in long-term retinal and ocular-surface resilience
• How a more modern eye exam can offer meaningful insights about whole-body health, not just vision

It’s the kind of conversation that makes you rethink what’s possible in medicine and get excited for the future of eye care and AI in clinical practice.

Listen now at the link in bio 🎧

11/15/2025

This week’s episode feels like a warm hug in the best way 🤗 We sit down with to discuss joy, gratitude and happiness in medicine.

Dr. Libert teaches from a place of deep knowing; knowing what it’s like to be burned out from doing the things we love and how to use joy to recover even when it seems hard.

She also teaches us about the science of these free interventions, and why the evidence suggests they’re so effective.

Would absolutely love to hear what you think! 💙

11/04/2025

✨ Breakthrough Research on Low Dose Lithium Orotate

New evidence is emerging that low-dose lithium may play a protective role in Alzheimer’s disease and support mood regulation and neuroplasticity in mental health conditions.

In this episode, we explore:
• What the 2025 research reveals - for the first time - about lithium’s effect on the brain and memory
• Differences between pharmaceutical lithium carbonate and low dose lithium orotate
• Safety considerations and dosing insights

We hear from Dr. James Greenblatt of , who’s been teaching about and using low dose lithium in practice for over 30 years.
His case studies are compelling and empowering. As he breaks down the science, it’s easy to see why lithium orotate has garnered so much excitement and attention this year.

🎧 Tap the link in bio to listen to this episode of the Root Cause Medicine Podcast, or listen anywhere podcasts can be found.

10/15/2025

✨ If you’re like me and can’t wait for Friday to hear these incredible speakers at Fullscript Forward 2025… here’s your preview!

In this new episode of The Root Cause Medicine Podcast, I sat down with David Downey, MD and Monique Class, MS, APRN-BC to explore the future of metabolic medicine.

💡 You’ll hear how:
• Metabolic phenotyping can explain why some patients plateau despite “doing everything right.”
• Microdosed GLP-1 protocols and tapering strategies can strengthen lifestyle-first care.
• Body composition tracking, HRV insights, and targeted lab monitoring give a fuller picture of metabolic health.
• A whole-person approach—integrating stress physiology, gut health, and muscle preservation—lays the foundation for true longevity.

This conversation is powerful — but it’s only the beginning.
🔥 The real deep dive happens Friday, when Dr. Downey, Monique, and other leading experts take the stage at Fullscript Forward to share cutting-edge strategies you can bring directly into your clinical practice.

👉 Reserve your spot before Friday at fullscriptforward.com
🎧 Listen to this episode of the Root Cause Medicine Podcast at link in bio and on any podcast platform

10/02/2025

🚨 New GLP-1 & Nutrition Advisory: What Clinicians Need to Know 🚨

The 2025 GLP-1 prescribing advisory from the American College of Lifestyle Medicine, the American Society for Nutrition, the Obesity Medicine Association, and The Obesity Society marks an important step forward in how we think about these medications.

In the latest episode of The Root Cause Medicine Podcast from Rupa Health, I sat down with Lara Zakaria PharmD MS CNS IFMCP—a pharmacist and functional medicine practitioner—to unpack what this means for providers.

Lara reframes GLP-1s not as a stand-alone solution, but as a window of opportunity to build long-term health through:
🥗 Nutrition counseling to prevent deficiencies (below) and screening for eating disorders
💪 Muscle preservation with adequate protein + resistance training to reduce the average 20% of weight loss from muscle
🧪 Lab monitoring (iron, vitamin D, thyroid, calcium, magnesium, zinc and vitamins A, D, E, K, B1, B12, C)
🌿 GI support strategies (hydration, magnesium, ginger, bitters) to address the 24% of people who have GI symptoms
🤝 Team-based care with dietitians, trainers, mental health professionals, and pharmacists

Providers will walk away with evidence-informed strategies to reduce discontinuation, optimize patient outcomes, and build sustainable behavior change around GLP-1 therapy.

Tune in at the link in bio 🎧

Read the paper here: https://lnkd.in/eu692Sjt

09/12/2025

🌸 The Four Outputs + Five Pillars That Redefine Vitality in Women’s Care

What if women’s healthcare moved beyond symptom management—and instead measured true vitality?

That’s exactly what Dr. Christy Evans, OB/GYN at is doing. Drawing from her unique journey (yes, she started as an accountant before becoming a physician!) and her work co-founding New Dawn Africa in Nairobi, Dr. Christy has developed a powerful framework to help women thrive at every stage of life.

In this episode, we explore:
💡 How pregnancy transforms every body system
💡 The Four Outputs + Five Pillars approach to vitality assessment
💡 Why postpartum care needs a total re-think
💡 Root-cause solutions for PCOS and metabolic health
💡 Why microbiome testing (gut + vaginal) is a game-changer
💡 The underrated role of community and connection in women’s well-being

Dr. Christy shares practical strategies too—from essential labs (A1C, thyroid, micronutrients, vaginal microbiome) to lifestyle shifts and supplement support.

🎧 Tune in using link in bio

This is a must-listen for anyone who wants to see women’s health reimagined—clinicians, patients, and changemakers alike.

09/05/2025

My friend and favorite holistic psychiatrist is back on the podcast to talk to us about what to do for anxiety when labs are normal.

If you caught our first episode, you heard her discuss all of the physiological root causes of anxiety that doctors should be working up for patients — including blood sugar swings, nutrient deficiencies and more.

In this episode, we talk about what to do when our anxiety is pointing us towards something that’s truly in need of our attention, and the tools we can use to alleviate it like movement breathwork, dancing, and more.

Listening to Dr. Ellen is calming in itself. She has an incredible voice and so many sayings that I find myself using over and over again when I tell people about her work. This episode was truly a joy to film and I think will be a joy to listen to.

If you’re looking for more tools to help your clients or loved ones with anxiety, this one is for you.

You can check it out on the Root Cause Medicine Podcast at the link in my bio.

08/29/2025

💊 Not all omega-3s are created equal.

In this week’s episode of The Root Cause Medicine Podcast, we welcome back Dr. Eric Viegas to unpack a topic that most people—even many clinicians—overlook: the quality and safety of omega-3 supplements.

We think omega-3s are powerful for cardiovascular health, cognition, and inflammation. But what about when they’re contaminated or oxidized?

🔬 In our conversation, we dig into:
✔️ The hidden risks of oxidation, rancidity, microplastics, and heavy metals, and why rigorous third-party testing is essential
✔️ Key differences between omega-3 forms (ethyl ester, triglyceride, monoglyceride, emulsified — which one are you taking? 👀
✔️ What labels like GOED, IFOS, and CGMP really mean
✔️ How to guide patients toward safe, effective omega-3s in a marketplace full of confusing claims

If you’re a practitioner who wants your recommendations to truly move the needle—or a health conscious person who’s committed to investing in supplements that actually work—you won’t want to miss this one.

🎧 Tune in now on your favorite podcast platform (link in bio).

👉 Doctors, what’s your go-to strategy for making sure your patients are getting clean, potent, safe omega-3s? Drop your thoughts below.

08/20/2025

What if we treated strength as a vital sign? 💪

On today’s Root Cause Medicine Podcast, we sit down with the incredible , founder of — one of the first chain of wellness clinics to combine functional medicine + movement + data + community under one roof.

Kristin’s story is so inspiring: she went from personal trainer ➡️ nurse practitioner ➡️ multi-site clinic owner. Along the way, she built a modern medical home where muscle mass, HRV, and community are considered just as important as blood pressure.

We dive into:
✨ Why sarcopenia (muscle loss) is the #1 overlooked risk factor in medicine
✨ The truth about GLP-1s, cortisol, and building muscle the right way
✨ Kristin’s 12-min-a-day wellness practice (yes, even while running multiple clinics + raising kids!)
✨ The labs, supplements, and metrics every clinic should track
✨ How to scale a practice without losing heart—or burning out (and how can help)

This conversation is full of golden nuggets for providers, entrepreneurs, and anyone who wants to bring strength training + functional medicine into clinical care.

🎧 Tune in wherever you get your podcasts—link in bio!

07/17/2025

Some of my favorite recent episodes that will help you make real, tactical changes in your health, family, practice and community.

Dr. Jessica Christie on 6 factors to investigate in unexplained infertility (and stories of hope)

Dr. Eric Viegas on the dangers of unregulated supplements and how to choose safe, quality products

Dr. Sam Yanuck on functional immunology and how to truly lower inflammation

on preventing cognitive decline and the biomarkers you can use to detect the underlying contributors to dementia
carriejones on the launch of her new incredible platform, Hello Hormones, dedicated to women’s health

on her incredible book The Anatomy of Anxiety (and how to fix it)

I’m so thankful to our incredible guests for sharing their knowledge and insights. Please check these out and let me know what you think! ❤️

Link to podcast in bio 👆

04/05/2025

🧠💥The amount of feedback we’ve gotten on this weeks’ episode on advanced approaches to managing cholesterol and cardiovascular risk with is so exciting. I highly recommend it to anyone in healthcare or navigating high cholesterol personally.

🔍 Key insights from this episode:

- High cholesterol has many genetic factors, and if you’re not checking if your client is a synthesizer vs. recycler, you’re missing a big part of the equation.

- Tests like ApoB and Lp(a) can tell us far more than LDL alone.

- Triglycerides are an early warning sign of insulin resistance, and HbA1c should be considered highly personalized given the latest research around the problems encountered when measuring it. This is why trends are so important.

- There are multiple medication options beyond statins (like Zetia and PCSK9 inhibitors), and Dr. Henry breaks them down in the most approachable way I’ve heard yet.

🎯 Whether you’re a provider or a patient, this episode is a masterclass in how to approach lipid panels with nuance and clarity.

📚 Bonus: Dr. Henry’s analogies (like cholesterol balls with “sticky hands”) make it all click.

🎧 Listen to the full episode in the link in my bio and on YouTube at the Root Cause Medicine Podcast

12/31/2024

Happy New Year’s Eve, everyone! Grateful to have you all in my life ❤️ If you’re like me and love to do some reflections at the end of the year and planning for the year ahead, here are some prompts that I’ve been loving doing with my family this year! ✨ Wishing you a beautiful 2025 🥰

Address

177 Townsend Street
San Francisco, CA
94105

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm

Website

https://www.drkatekresge.com/

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Our Story

We launched on Valentine’s Day, 2020. I’d like to think that’s because we do everything with love.

I say “we” because this clinic would not be possible without the dear friends, family members, teachers, mentors, fellow physicians and professionals I’ve met over the past decade who’ve helped to push this movement forward.

Our vision was to create a medical practice that allowed for true connection, kindness, and spectacular, life-changing, whole-person healing. We wanted to use the most advanced science to provide outside-the-box, modern holistic healthcare at an accessible price. We committed ourselves to doing whatever it takes to be a safe space for the LGBTQIA community, those with trauma, folks on the spectrum (all of us!), foster kids and those who feel generally left out of the medical system. We have a lifelong pursuit of excellence and greatness that allows us to serve those with rare conditions and high performers who are looking to push themselves to the next level in their workouts, work or relationships.

In short, we wanted to be a healing space for everyone.