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Dr. Kara Fitzgerald
Individualized Evidence Based Integrative & Functional Medicine
Dr. Kara Fitzgerald Dr. Kara Fitzgerald
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    • Dr. Kara Fitzgerald
    • Our Team
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  • Learn
    • Newsletter
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    • REPORT: The Use of AI & Wearables in Functional & Longevity Medicine
  • Contact
  • YOUNGER YOU
    • Practitioner Training
    • What is Younger You
    • Books
      • Younger You book
      • Better Broths book
    • Discover Your Bio Age
      • Bio Age Quiz (BASA) – FREE
      • Bio Age Lab Test
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Karen Frank, CPC

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Karen Frank, CPC, our Sandy Hook Billings Manager is responsible for the timely and accurate preparation and distribution of customer invoices for the company and its subsidiaries. In addition, her department handles special invoicing as some joint-venture related invoicing.

Categories: Karen, PeopleApril 1, 2015

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KARA FITZGERALD, ND
DR. KARA FITZGERALD, LLC
KF EDUCATION & CONSULTING, LLC

The New Frontiers Functional Medicine & Nutrition Clinic is located in the Sandy Hook Village section of Newtown, Connecticut in Fairfield County, Connecticut.
  • Phone:
    (203) 304-9502
  • Fax:
    (203) 304-9503
  • Address:
    27 Glen Road, Sandy Hook CT 06482

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IFM Certified Practitioner

Kara Fitzgerald, ND, Naturopathic Doctor is a certfied practitioner with The Institute for Functional Medicine.

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Human Rights Day reminds me just how deeply health Human Rights Day reminds me just how deeply health is tied to circumstance.

In medicine, we often focus on biomarkers, pathways, and protocols, but none of it matters if people don’t have access to safety, nourishment, community, or basic dignity.

These aren’t abstract concepts; they’re upstream determinants of immune function, stress biology, resilience, and long-term health trajectories.

Every day in clinic, I’m reminded that a person’s environment can either support healing or work against it.
Access to clean food, stable housing, safe relationships, and unbiased care, all of these shape biology as surely as any lab result.

Today, I’m thinking about the patients who’ve had to overcome far more than what shows up on a chart… and about the clinicians, researchers, and advocates working to close these gaps.

Their efforts matter deeply.

Good medicine must also be humane medicine.

When we support human rights, we support human health.

#HumanRightsDay #SocialDeterminantsOfHealth #FunctionalMedicine #LongevityMedicine #IntegrativeMedicine #HealthEquity #PublicHealth #StressBiology #TraumaInformedCare #HolisticHealth #HumanHealth #ClinicalInsights
If you’ve seen me speak, you know I’m obsessed wit If you’ve seen me speak, you know I’m obsessed with Urolithin A!

The newly published MitoImmune study in Nature Aging offers the first rigorous clinical evidence examining how Urolithin A (Mitopure®) may support immune aging through its effects on mitochondrial health and mitophagy. 

In this randomized, placebo-controlled trial, Urolithin A was linked to increases in naïve CD8+ T cells, reduced markers of exhaustion, healthier metabolic programming, and stronger cellular responses when challenged ex vivo.

These findings highlight an emerging concept: mitochondrial quality and mitophagy may play a meaningful role in maintaining immune resilience as we age. 

While more research is needed, this mechanistic evidence adds an important layer to our understanding of inflammaging, metabolic inflexibility, and immune decline.

Check out our latest blog, in partnership with @timeline_longevity, for more info. Comment MITOIMMUNE and we’ll DM you the link or head to https://tinyurl.com/Mitoimmune-Study to read the full article.
The naturopathic community is facing an unexpected The naturopathic community is facing an unexpected and deeply concerning development this week.

The US Department of Education has proposed a rule change that would exclude the Doctor of Naturopathic Medicine (ND) degree from its definition of “professional degree,” dramatically limiting ND students’ access to federal student loans.

If enacted, this would sharply reduce federal aid, push future students into high-interest private loans, and ultimately shrink the pipeline of trained naturopathic physicians, clinicians who play a critical role in root-cause, nutrition-focused, lifestyle-based medicine.

As someone who has spent my career working alongside NDs, teaching them, and watching them transform patient lives, I find this profoundly troubling. 

Many of you have noted that RFK Jr. has historically expressed support for naturopathic medicine and our shared emphasis on prevention and whole-person care.

That makes this moment even more disappointing.

Regardless of where any of us fall politically, undermining access to ND education is a step in the WRONG direction for a healthcare landscape that desperately needs more practitioners trained in nutrition, lifestyle, environmental medicine, and functional approaches, not fewer.

This is not about politics.

It’s about workforce, access, and the future of integrative medicine in this country.

The American Association of Naturopathic Physicians (AANP) has created a simple portal to contact your representatives. It takes under two minutes, and your voice matters, especially before the public comment period opens.

Comment ND ADVOCACY and we’ll DM you the link, or head to https://naturopathic.org/page/LegislativeActionCenter#/ to take action now. 

Regardless of our individual backgrounds, MD, DO, ND, NP, PA, nutritionist, researcher, or student, we are all working toward the same goal: advancing a healthcare model that addresses root causes, honors biology, and improves lives.
Let’s stand together in protecting the training pathways that make this possible.

#HealthcareWorkforce #ClinicianEducation #MedicalTraining #HealthPolicy #StudentSupport #NDEducation #ProtectNaturopathicMedicine
🚨 Upcoming Webinar for Clinicians 🚨 Real-Time Bio 🚨 Upcoming Webinar for Clinicians 🚨

Real-Time Biomarkers That Predict Early Heart Disease & and the Genetics Behind Them

I’m excited to be joined by Dr. Jason Barker, ND, Clinical Lab Educator at @VibrantLabs, for a deep dive into how advanced biomarker testing + genomics can meaningfully upgrade cardiovascular prevention.

We’ll explore:
🔬 Real-time risk signals: How the Cardio Zoomer measures advanced lipids, inflammation, ceramides, oxidative stress, and endothelial health — revealing dysfunction before symptoms emerge.
🧬 The genetic “why”: How Cardio Genetics helps clinicians understand SNPs influencing lipid metabolism, inflammation, clotting, blood pressure regulation, and even how patients metabolize statins and antiplatelet drugs.
📊 Clinical case walk-through: See how combining biomarkers with genetics can uncover hidden risk and transform prevention strategies.

Plus, we’ll have a live Q&A and a limited-time replay for all registrants.

If you’re looking to expand your cardiovascular prevention toolkit with truly personalized insights, you won’t want to miss this one.

📅 December 18, 2025
 ⏰ 3:00 PM ET
 🔗Comment VIBRANT WELLNESS BIOMARKERS and we'll DM you the link, or head to https://tinyurl.com/VibrantWellnessWebinar to register. 

For educational purposes only. Not medical advice.

#FunctionalMedicine #Genomics #CardioHealth #ClinicalEducation #LongevityMedicine #Inflammation #GeneticTesting #CardioZoomer #ClinicianEducation #DrKaraFitzgerald
A new randomized, placebo-controlled clinical tria A new randomized, placebo-controlled clinical trial shows that urolithin A, a postbiotic your body makes from polyphenols, can rejuvenate key aspects of immune function in just 4 weeks.

Here’s what researchers found:
🧬 More “youthful” CD8 T cells
 Urolithin A increased naïve, less-exhausted CD8 cells, the very cells that decline with age.

⚡️ Better mitochondrial energy
 Immune cells showed greater capacity to use fats and amino acids for fuel, a signature of healthier, more resilient mitochondria.

🔥 Stronger functional response
 When challenged, CD8 cells produced more TNF (a healthy activation signal), without triggering pathological inflammation.

🛡️ Improved bacterial clearance
Monocytes became better at engulfing and removing bacteria.

What ties all this together?

Mitophagy — the process of clearing damaged mitochondria so new, efficient ones can take their place.

Urolithin A is one of the few compounds shown in humans to meaningfully activate this pathway.
Mitochondria power immunity.

Support the mitochondria, and the immune system follows.
This website is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician with any questions regarding a medical condition.
Dr. Kara Fitzgerald

© 2025 Dr. Kara Fitzgerald, LLC | Site by Yakadanda

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Dr. Kara Fitzgerald, ND

Dr. Fitzgerald is an internationally-recognized expert clinician, as well as nationally-bestselling author, who is actively engaged in clinical research on epigenetics and longevity using a diet and lifestyle intervention developed in her research and practice.

She has published two clinical studies on the potential bioage-reversing effects of an 8-week DNA methylation-supportive diet and lifestyle in middle-aged men and women in the journal Aging. She continues to lead the conversation around interventions for healthy aging and their extensive potential in improving individual and population level disease burdens, while also providing evidence-based and practical advice that cuts through the hype.

Dr. Fitzgerald is on faculty at the Institute for Functional Medicine (IFM), is an IFM Certified Practitioner, and lectures globally on functional medicine, longevity, and epigenetics to practitioners and consumers.

She maintains an award-nominated podcast series ranked in the top 1% of global podcasts by Listen Score, New Frontiers in Functional Medicine, and an active blog and Clinic Immersion webinar series through her website, www.drkarafitzgerald.com.

Follow Dr. Fitzgerald on Instagram: @drkarafitzgerald

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