Skin care. Hands in close-up

How the OS-01 Peptide Works to Reverse Skin’s Biological Age

When we’re young, building a skin care routine is relatively simple: a face wash, moisturizer and sunscreen will do the trick. But as we grow older and develop visible signs of aging skin, choosing from the overwhelming array of mature skin care products like anti-aging creams, serums, and treatments often feels like an impossible task. What can we trust to actually work? It’s easy to get lost in new trends like 10-step skincare routines, but try to look past marketing and prioritize your skin’s health above all else. As our largest organ and first line of defense against environmental aggressors, our skin can have an enormous impact on our overall body health. A truly effective skin care routine should support your skin’s health first and improve the way it looks as a result. That’s where OneSkin comes in.

The 12 biological hallmarks of aging viewed through a functional medicine and functional longevity lens

In the fields of functional medicine, functional longevity and epigenetics, research is moving quickly – and so spending time delving into the scientific literature and discussing new findings with other experts in the field is essential. Last month, a new paper landed on my desk, published in the leading journal Cell. It lays out a…


Best of 2022 in Functional Medicine and Longevity

This might just have been our most exciting year yet here at Dr. Kara Fitzgerald! With the launch of three books through major publishing houses, authored by my team and myself, we have barely had a moment to touch ground. Yet, delivering high value content in the functional medicine and longevity space, across all channels,…

The Protein Magic Formula

How Much Should We Eat For Optimal Health & Longevity? Plus my thoughts on combining with Younger You epinutrient targets   About a month ago, I podcasted with Valter Longo, PhD, a highly respected scientist and director of the Longevity Institute at the University of Southern California. Of course, our conversation hit on protein, something…

Probiotics food background. Korean carrot, kimchi, beetroot, sauerkraut, pickled cucumbers in glass jars. Winter fermented and canning food concept. Banner with copy space.

Precision Probiotics: Feeding Your Gut the Bacteria it Needs

Doctors, scientists and nutritionists are continually discovering how the gut microbiome influences our health – but we can influence its health too. Consider that one-third of the gut microbiome is consistent among adults, while the other two-thirds are unique to each of us, based on accumulated exposures to the environment, dietary patterns, physical activity, health conditions, and medications taken. Many of these are under our control.

The Fake Meat Carbon Footprint: Is It Worth It?

A Deep Dive Into the Environmental Impact of Meat Substitutes  Author bio: Dr. Christine Sanford is a Board-Certified Pharmacotherapy Specialist with a functional, whole-person approach to medicine who received her Doctor of Pharmacy degree from Ohio Northern University. Pursuant to residency training at Methodist Hospital, she served as a clinical pharmacy specialist at Stanford Health…

An Elderly Woman Getting a Vaccine

How Well Will Your Vaccine Work? It Depends On Your Diet and Lifestyle

This article was contributed by our founding Nutrition Programs Director, Romilly Hodges MS CNS CDN IFMCP. Romilly is the author of the new book IMMUNE RESILIENCE, published in April 2022 by Penguin Random House and available wherever books are sold. Don’t forget to order your copy!   In the field of personalized health, it should…

Dentists treat patients' teeth.

Dental Probiotics: What Are They & How Do They Benefit Oral Health?

The human microbiome has become the center of many discussions related to health issues. This makes sense, considering that we are made up of more non-human microorganisms than human cells.1 And if we broaden our view of what the human body is, we quickly understand that we cannot exclude the trillions of microorganisms living in and on our bodies, including the ones that live in our mouths. Just like other microbiomes in the body, our oral microbiome consists of many different types of bacteria. For too long most dentists and clinicians have focused only on pathogenic bacteria that are responsible for oral diseases such as dental caries or periodontal disease, rather than looking at the oral microbiota in its entirety. But in recent years we have gained a better understanding of what types of bacteria live in the mouth and what role they play in their microbial community.