Take Back Your Health

19. How to Reverse your Biological Age (with Dr. Kara Fitzgerald, ND)


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What if I told you that your biological age could be reversed by over three years in just eight weeks? Dr. Kara Fitzgerald —this week’s guest—has the science to prove it's possible. 

Dr. Fitzgerald is a leading expert on DNA methylation and the author of the book Younger You: Reduce Your Bio Age and Live Longer, Better. If you’re interested in aging well, this week’s conversation is chock-full of incredibly practical changes you can take tomorrow (maybe even today!).


Here’s a peek into what you’ll learn:

  • The specific diet and lifestyle program that significantly reversed study participants' biological age
  • The clinical test that you can take to find out how fast you’re aging
  • Dr. Fitzgerald’s recommendations for fasting windows, meditation practices, and supplements to support a younger biological age.
  • Why she calls exercise an “amazing vegetable” and how it impacts DNA methylation


  • 00:24 Meet Dr. Kara Fitzgerald

    01:51 Dr. Fitzgerald's Journey into Functional Medicine

    05:01 The Importance of Methylation

    07:35 Understanding DNA Methylation and Epigenetics

    14:18 Dr. Fitzgerald's Research and Findings

    23:48 Implementing the Program: Diet and Lifestyle

    29:58 Addressing Autoimmune Conditions and Supplementation

    30:34 Dietary Intervention and DNA Methylation

    31:44 Probiotics and Greens Powder in the Study

    34:19 Study Results

    35:57 Lifestyle Factors: Sleep, Exercise, and Meditation

    46:36 Final Thoughts and Key Takeaways


    Connect with Amy Myers, MD

    Website: https://www.amymyersmd.com/

    Instagram: https://www.instagram.com/dramymyers

    YouTube: https://www.youtube.com/@AmyMyersMD/featured

    Newsletter: https://www.amymyersmd.com/ec/guide-to-leaky-gut

    Facebook: https://www.facebook.com/AmyMyersMD

    Connect with Dr Kara Fitzgerald, ND

    Website: http://www.drkarafitzgerald.com/

    Instagram: https://www.instagram.com/drkarafitzgerald/

    Bio Age Lab Testing: https://www.drkarafitzgerald.com/younger-you-bio-age-lab-test/

    Book: Younger You: Reduce your Bio-Age and Live Longer, Better

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