Urolithin A is rapidly becoming a go-to longevity nutrient, and with good reason. Backed by 15 years of research and 11 human clinical trials, it is one of the most extensively studied compounds for healthy aging.
There’s a red flag I’ve learned to pay close attention to in clinical practice—and it’s not just elevated homocysteine or a sluggish DUTCH test. It’s when a new patient mentions they live on or near a golf course.
Prompted by the increase in exposure to wildfire smoke, researchers at the University of New Mexico put together this graphical representation of how environmental toxins are known to affect the hallmarks of aging.
When I was a kid at lunch, while my friends were eating those heavenly-looking ultraprocessed Twinkies and Ringdings and making dough balls with their white bread, I ate home-made yogurt or nutbutter sandwiches on a very dense, whole grain bread;…
Estrogen is a life-giving hormone with which modern humans have a complicated relationship. Over two decades ago, The Women’s Health Initiative (WHI) findings mistakenly reported that combined estrogen and progestin hormone therapy increased the risk of breast cancer, coronary heart…
Discover the truth about olive oil. Dr. Artemis Morris busts common myths and shares science-backed benefits of this Mediterranean staple.
Berberine is a common choice in the functional medicine community to aid patients in blood glucose regulation. Up until March 2025, there were 30 randomized controlled trials on PubMed investigating this connection. Now, a new study published in a prestigious…
A recent study published by a team of scientists at Yale, UCLA, University of Florida, and University of Hawaii found that (unfortunately) experiencing violence and trauma becomes biologically embedded in our epigenome, and that these changes are passed down not…
Sleepless nights can be more than just an occasional inconvenience—they often come with exhaustion, frustration, and confusion about why nothing seems to help. If you’ve (or your patients have) tried different remedies but still struggle to get quality rest, understanding…
Protecting your skin from UV radiation isn’t just about minimizing sunburns—it’s about slowing a significant accelerant of biological aging that triggers oxidative stress, immune suppression, and cellular senescence. While traditional sunscreens are a barrier to limiting UV exposure, they aren’t…
Starting and growing an integrative medical practice is a transformative journey that requires careful planning, commitment, and adaptability. Often, integrative and functional medicine providers are great clinicians when it comes to helping their patients, but feel inadequately prepared to run…
By the end of my book tour in 2022—one of the most amazing but intense experiences of my life—you could scrape me off the floor. (Who knew? I certainly didn’t expect it.) I was wiped out. My Oura data corroborated…
We love this combination of creamy oats, sweet apples, and warming spices for a fall or winter breakfast. It also works with peaches instead of apples! Oats are rich in beta-glucans, a soluble dietary fiber that’s perfect in sweets,…
Mitochondria are crucial for life, and increasingly research is finding that they hold the key to better aging and longevity, as a critical hallmark of aging. While optimising mitochondrial health through exercise, diet, and stress management is essential for maintaining…
This month: Yes, yes, yes: intensive lifestyle interventions (4 papers); omega-3 fatty acids and exercise all WORK on preventing and/or reversing cognitive impairment, including in those with genetic risk (including APOE4). Do adipocytes house epigenetic memory leading to the inevitable…
Sip Your Way to Health: The Glow & Thrive Mocktail Recipe for Longevity The New Year is a time for fresh starts, thoughtful intentions, and celebrations with loved ones. But why not toast to your health while you’re…
Happy holidays everyone! As you enjoy the festive season, I wanted to take a moment to share with you below some of the highlights from this past year here at Dr. Kara Fitzgerald. It’s been quite a 12 months, and…
Hippocrates is said to have stated “All diseases begin in the gut.” 2000 years later, advancement in gastrointestinal testing, like the GI360™ stool profile from Doctor’s Data, allows medical professionals to ascertain what is in the gut, and how it…
Since my time in a laboratory at the start of my career in 2006, where I was a contributing author to Laboratory Evaluations for Integrative and Functional Medicine (including principal author on the Nutrient & Toxic Elements chapter), I have…
Nourishing Autumn Vegetable Soup for Longevity As the crisp October air begins to settle in, it’s the perfect time to cozy up with a warm bowl of Hearty Autumn Vegetable Soup. This nourishing recipe is not only delicious but is…
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.
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