What is functional nursing? Discover how nurses integrate functional medicine, root-cause thinking, the nursing process, and whole-person care.

After years of educating nurses and nurse practitioners in functional medicine—and listening to the feedback of over 1,000 students who have been through my programs—I can confidently say this: choosing the right training program makes all the difference. There are a lot of programs out there claiming to teach root-cause care. Some offer short courses. Some promise board certifications. Some look flashy on the surface but leave nurses confused about how to actually apply wha

Functional Medicine’s Promise—and Its Problem Functional medicine has changed the way many of us think about health. It’s upstream, it’s root-cause, and it finally acknowledges what we as nurses have known all along: healing is about the whole person, not just a disease code. Patients leave functional medicine offices feeling heard in ways they never have before. They finally have a provider asking about their sleep, their stress, their nutrition, their story. But here’s the

Originally published in October 12, 2022. Updated November 8, 2025 by Dr. Brigitte Sager, DNP, IFMCP, Founder & CEO of the Institute for Functional Nursing One of the most common questions I get asked regarding practicing functional medicine as a nurse is about scope of practice, and for good reason! It is a confusing topic, and we do not want to put our hard-earned licenses at risk! I first created and taught the Functional Medicine for Nurses program to help RNs and NPs

I've been thinking a lot lately about what draws nurses to functional medicine. After years of educating thousands of RNs and NPs, I've noticed that many of us are searching for something similar. We want to understand our patients more deeply, make a meaningful difference in their health, and feel that the work we're doing reflects why we became nurses in the first place. For some, that means bringing functional medicine into their current nursing role. Others are curious ab

We talk a lot in the functional medicine world about food, sleep, movement, stress, toxins, and the many biological systems that influence health. But there is another factor that deserves a place in every whole-person health conversation...connection. The people around us, the relationships we can lean on, and the feeling that someone knows us, sees us, and cares what happens to us all matter. Social connection isn’t simply something that makes life more enjoyable. A growing

Autoimmune disease is one of those areas where patients often feel like they are living in the gap. They may have symptoms for years before getting answers. They may be told their labs are “normal” when they know something is not right. They may finally receive a diagnosis, but still feel unsure about what they can actually do to support their body day to day. And many of them are exhausted. Fatigue. Joint pain. Brain fog. Rashes. Gut symptoms. Thyroid changes. Flares that se

Before I found functional nursing, I found nurse coaching. At the time, I was feeling unsettled in my career. I had become a nurse practitioner thinking it would help me feel more aligned in nursing. I thought more autonomy, more clinical decision-making, and more time with patients would finally help me practice the way I imagined when I first became a nurse. But even as an NP, I still felt like something was missing. I was still seeing patients rushed through visits. I was

You may have heard me talk on the podcast about how GLP-1 medications are here to stay. Whether you love them, hate them, feel conflicted about them, or believe a functional approach could reduce the need for them in some patients... the reality is that our patients are already on these medications. And many more will be. J.P. Morgan Research estimates that more than 30 million Americans may be on GLP-1 treatment by 2030, up from an estimated 20 million on branded GLP-1s in 2

I get questions all the time from family, friends, neighbors, other nurses, and my students about hormone replacement therapy. Should I take it? Is it safe? What about bioidentical hormones? Can I balance my hormones naturally? What would a functional approach look like? And honestly, I understand why these questions are coming up so often. Women are tired of being dismissed. We’re tired of being told that exhaustion, weight gain, sleep disruption, mood changes, heavy periods

Learn how holistic nursing certification aligns with functional nursing and supports professional growth.

In recent years, an interesting theme has been surfacing more and more in conversations within functional medicine. At conferences and gatherings of clinicians, researchers are talking about factors that influence health far beyond biochemistry and lab results. Two that come up often are joy and isolation- how connection, community, and emotional well-being shape our physiology just as much as diet, sleep, and nutrients. But I’ve been thinking about another factor that may be