Dr. Kara Fitzgerald

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Sandy Hook, CT
Dr. Kara Fitzgerald

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Actively engaged in award-winning clinical research on epigenetics & longevity. IFM Faculty & renowned international speaker.

Director of New Frontiers Functional Medicine & Nutrition Clinic. Subscribe to get latest content at www.drkarafitzgerald.com

10/19/2026

A calcium score of zero may not tell the whole story, especially for women. ❤️

In this clip, I discuss why looking at calcification alone can leave part of the cardiovascular picture unseen, and why I’m excited about imaging that can help us better understand plaque and individual risk.

Women’s heart health deserves more attention, including how heart disease presents and how we assess it.

That’s one reason I’m glad to be part of HEARTproof, a new Zonia original docuseries bringing together 36 cardiologists, physicians, researchers, and heart-health experts to explore cardiovascular health, prevention, and emerging science.
I hope you’ll join us!

Comment HEARTproof and we’ll send you the link to sign up for the FREE exclusive online premiere.

10/18/2026

When you think about your health goals, what do you hope they’ll make possible?

Maybe it’s the energy to travel. The strength to play with your grandchildren. The chance to pursue something you’ve put off for years.
Those hopes deserve a place in the conversation about longevity.

I spend a lot of time thinking about biological aging, nutrition, and the daily choices that support our health. I also want us to remember why those choices matter to us personally.

You don’t have to put your life on hold until you reach a goal. Call the friend. Sign up for the class. Make a little time for something you love, even while you’re working toward feeling better.

Let the life you want help guide the care you give yourself today. 💛

What’s something you still want to experience, create, or contribute? I’d love to hear.

10/16/2026

What gives you a reason to get up in the morning?

A 2026 UC San Diego dissertation explored how purpose in life, life satisfaction, and resilience relate to longevity and biological aging in older women. Purpose emerged as the most consistent finding.

In an analysis of 29,143 women, greater purpose was associated with higher odds of reaching ages 90, 95, and 100 and reaching 90 with intact mobility and cognitive function.

As someone who studies biological aging, I was also interested in the epigenetic findings. Greater purpose was associated with less age acceleration on several clocks, but those associations weakened after accounting for blood cell composition. Protein-based aging measures showed no meaningful associations with the three dimensions of wellbeing.

These distinctions matter. This is observational research, and the findings don’t establish that purpose slows aging or extends life. The work is a dissertation, with the full text currently under embargo; this summary draws from its public abstract.

What I take from it is an invitation to consider meaning alongside the other parts of healthy aging we discuss.

Purpose might come through caring for someone, mentoring, creating, volunteering, or learning something that matters to you.

What gives your days a sense of purpose? I’d love to hear. 💛

10/15/2026

7,649 registrants. 103 countries. One shared commitment to helping patients live healthier, longer lives. 💛

Our 2026 Functional Medicine IS Longevity Medicine™ masterclass brought together 31 speakers to explore biological aging, epigenetics, nutrition, the microbiome, women’s longevity, and more.

Thank you to everyone who joined us, asked thoughtful questions, and made these conversations so meaningful. Swipe through for the highlights!

For practitioners wondering how to bring this learning into patient care, I’d love for you to join us in Younger You practitioner training. We’ll build on the conversation with a deeper look at the Younger You approach and its application in clinical practice.

Whether you joined us live or are catching up on the replays, I hope this is the beginning of your next chapter in longevity medicine.

👉Comment YYIP to learn more about Younger You practitioner training and join us.

10/13/2026

What if everything we thought we knew about heart health was only part of the story?

Heart disease remains the leading cause of death in the US, yet cardiovascular risk can begin developing long before we feel anything is wrong.

So what should we be paying attention to before the warning signs appear?

A new Zonia original docuseries "HEARTproof" brings together 36 leading cardiologists, physicians, researchers and heart-health experts to explore the factors shaping cardiovascular health – from metabolism and inflammation to lifestyle, prevention and emerging approaches to understanding individual risk.

Because when it comes to protecting our hearts, what we understand earlier could matter for decades to come.

Comment HEARTproof and we’ll send you the link to sign up for the FREE exclusive online premiere!

10/12/2026

Could calming age-related inflammation help cancer immunotherapy work better?

A Nature Communications study points to thymulin, a thymus-derived peptide that declines with age. In older mice with breast tumors, thymulin reduced inflammation and improved immunotherapy response.

The clinical question remains: will this translate to people? Human trials are needed.

Save this for your next research discussion.

Source: https://doi.org/10.1038/s41467-026-75383-0

10/11/2026

Hydrogen sulfide may bring to mind challenging gut cases, but could it also play a role in healthy aging?

I’m looking forward to exploring that question with Dr. Tom Fabian from Diagnostic Solutions Laboratory in our free live webinar, Toxic or Therapeutic? Rethinking Hydrogen Sulfide in Gut Health & Longevity.

We’ll discuss:
🧬 H₂S signaling and mitochondrial function
🌱 How diet and the gut microbiome shape sulfur metabolism
🔎 Clinical strategies for supporting healthy H₂S balance

If you work at the intersection of gut health and longevity, I hope you’ll join us and bring your questions to our live Q&A!

📅 Thursday, October 22
⏰ 3 pm ET / 12 pm PT

🔗 Comment HYDROGEN SULFIDE and we’ll DM you the link to register

10/09/2026

Your salad can do more than fill a bowl. It can deliver the nutrients your body uses to support healthy methylation, gene expression, and longevity. 🍂

Our Younger You Autumn Salad brings together mixed greens, red cabbage, carrots, avocado, pomegranate seeds, sunflower seeds, parsley, and cilantro for a colorful mix of folate and epinutrients, including DIM and quercetin.

The bright citrus-herb dressing, with lemon, extra-virgin olive oil, apple c***r vinegar, garlic, and fresh dill, comes together in minutes and works just as well over vegetables or your favorite protein.

Add organic chicken, wild fish, or legumes to turn it into a complete meal. Ten minutes, one vibrant bowl, and so much nourishing variety.

Comment AUTUMN SALAD and we’ll DM you the link!

10/08/2026

What does infrared sauna have to do with your heart? More than you might expect. ❤️

In this conversation with Sunlighten Saunas, we explore research on far-infrared sauna and cardiovascular health, including a five-year study involving 129 patients, many with congestive heart failure.

We also discuss how different parts of the infrared spectrum interact with the body and why researchers are studying their effects on vascular function and the heart’s ability to pump blood.

Comment INFRARED BENEFITS PODCAST for the full conversation.

10/07/2026

We’re hiring a part-time, remote Contract Social Media Coordinator with strong short-form video editing skills. Video is the heart of this role.

You’ll dig into Dr. Kara Fitzgerald’s library of podcasts, webinars, and interviews to find compelling moments, then shape them into Instagram Reels and YouTube Shorts. We’re looking for someone with an instinct for the right hook, sharp pacing, clear captions, and the judgment to make health science engaging without losing its nuance.

You’ll also help develop original Reels for Dr. Fitzgerald to record, create a small number of Canva posts, and use performance data to make the next video stronger.

If you love editing, understand what holds an audience’s attention, and are curious about functional medicine, nutrition, and longevity, we’d love to see your work.

To apply: Visit https://www.drkarafitzgerald.com/career-opportunity/ to view the job description. Then, send your resume, a brief cover letter with your rate expectations, and examples of social accounts and short-form videos you’ve created to [email protected].

Remote · Part-time contract · Flexible hours · Immediate start

Address

Sandy Hook, CT

Telephone

+12033049502

Website

http://www.drkarafitzgerald.com/

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