Your Questions, Answered

FNR is a root cause functional medicine and nutrition practice based in Owasso, Oklahoma, founded in 2011 by Jennette Berry, RDN, LDN. We are different in one fundamental way: we look for why your body is struggling, not just what to name the symptoms.

Conventional medicine is designed to diagnose and prescribe. We are designed to investigate — using comprehensive functional lab testing, a full review of your history and timeline, and a personalized plan built around five health pillars: nutrition, gut health, detoxification, stress and hormones, and movement. We walk with you through every step of the process until you have the foundation to stay in control of your health on your own.

FNR was founded in 2011 and has been operating for over 15 years. We have helped hundreds of patients across Oklahoma and the country address root causes that conventional medicine could not find or could not address within the constraints of the insurance system.

Yes. We serve patients across Oklahoma, Arkansas, Texas, Kansas, and beyond through telehealth. Our virtual platform allows us to conduct full evaluations, follow-up appointments, and lab reviews remotely with no loss in quality of care. Lab work can be coordinated through collection sites near you.

Our office is located at 10318 N 138th E Ave, Suite 101, Owasso, Oklahoma 74055 — just north of Tulsa. We also see patients virtually for everything from initial evaluations to ongoing coaching appointments.

A discovery call is a free, 15-minute phone conversation with someone on our team. We want to understand what has been going on with your health, what you have already tried, and where you feel stuck. At the end of the call, we will be honest with you about whether we think we can help and whether FNR is the right next step. We do not pressure anyone into anything. We would rather have that honest conversation up front than waste your time or your money.

Conventional medicine is designed to diagnose and prescribe. We are designed to investigate — using comprehensive functional lab testing, a full review of your history and timeline, and a personalized plan built around five health pillars: nutrition, gut health, detoxification, stress and hormones, and movement. We walk with you through every step of the process until you have the foundation to stay in control of your health on your own.

If we agree that we can help, the next step is a full initial functional evaluation — a one-hour appointment with one of our practitioners. This is where we do a deep dive into your complete history: your symptoms, your timeline, what has happened in your body and your life that has led you here, and what you want to be different going forward. We also map out your personalized lab testing so we have the data we need to build your plan. This evaluation is normally $289. For anyone who has completed a discovery call with us, it is $89.

Yes — and we ask this for an important reason. Healing does not happen in our office. It happens at home, in your kitchen, at the dinner table, in the small daily decisions that make up your shared life. When your significant other understands what you are doing and why, your progress is significantly better. We have seen this hundreds of times. This is not about the financial decision — it is about the healing environment. We explain this to every patient before their evaluation appointment.

Both options are available and both work equally well. We have been doing telehealth for years. If you choose to connect virtually, we will send you everything you need to prepare and our platform makes the appointment feel like you are in the room with us.

Start by booking a free discovery call at functionalnutritionresources.com/discovery-call or call and text us at 918-401-0006. Our team will personally help you get scheduled if you have any difficulty.

We do not. We took insurance for the first eight years we were open and we can tell you from direct experience: the moment care is dictated by an insurance system, it changes what you are actually able to do for your patients. Insurance pays for the management of disease — not the investigation of root causes. Leaving that model gave us the freedom to practice the way we believe healthcare should work.

Most of our patients tell us that what they were spending on specialist visits, medications, and procedures before finding us far exceeded what they invest here.

We structure our programs in a bundled, all-inclusive way so that everything you need is included — no surprise costs along the way. We also build in monthly payment flexibility so that your investment is predictable and manageable. Once we have completed your evaluation and know exactly what your care plan looks like, we will be completely transparent about what is involved and what it costs. We will never surprise you with a bill.

The initial functional evaluation is normally $289. For anyone who has completed a discovery call with us first, the evaluation is $89. The discovery call itself is completely free.

Many of our patients use their HSA or FSA accounts for their program investment. We recommend checking with your specific plan administrator to confirm what is covered under your account, as policies vary.

Functional medicine is a systems-based approach that looks at the body as an interconnected whole and asks why dysfunction is occurring rather than simply naming and managing it. It uses advanced lab testing, detailed health history review, and personalized lifestyle and nutritional interventions to address root causes.

Integrative medicine typically combines conventional treatment with complementary approaches like acupuncture, massage, or herbal medicine. Functional medicine is more specifically focused on the investigation of underlying biochemical, hormonal, and gut-related causes of chronic disease. At FNR, our approach is firmly rooted in functional medicine with nutrition as the foundational tool.

Functional medicine is grounded in the same peer-reviewed research that informs conventional medicine — it simply applies that research differently. The connection between gut health and immune function, for example, is well-established in the scientific literature. The role of chronic inflammation in autoimmune disease, the impact of nutrient deficiencies on hormone regulation, the relationship between stress and gut permeability — these are not alternative concepts. They are documented mechanisms that conventional medicine has been slow to integrate into standard practice. Our practitioners train through the Institute for Functional Medicine, considered the gold standard in functional medicine education.

Naturopathic doctors complete a four-year naturopathic medical program and are licensed practitioners in states that recognize naturopathic medicine. Functional medicine practitioners are typically licensed healthcare providers — physicians, registered dietitians, nurse practitioners, pharmacists — who have completed additional training in functional medicine methodology. At FNR, our practitioners are registered dietitians and a pharmacist, all with advanced functional medicine training through IFM.

We understand why some conventional providers are skeptical, and we respect the conventional medicine system for what it does well. The honest answer is that the science behind what we do is well-established — the gap is in how that science is applied in practice. Gut-immune connections, the inflammatory mechanisms of autoimmune disease, the role of nutrition in chronic disease management — these are published, peer-reviewed areas of research. We encourage you to bring your FNR labs and plan to your conventional provider. Many of our patients have productive conversations with their doctors once they see the specificity of what we test and what we do.

We work with people dealing with autoimmune conditions (Hashimoto’s, rheumatoid arthritis, lupus, Crohn’s, celiac, fibromyalgia, and more), thyroid and hormone imbalances, digestive disorders (IBS, leaky gut, SIBO), metabolic syndrome and weight health, chronic inflammation, fatigue and energy issues, brain fog, stress, mood, and sleep concerns. The common thread is that most of our patients have been through the conventional system and left without real answers.

Integrative medicine typically combines conventional treatment with complementary approaches like acupuncture, massage, or herbal medicine. Functional medicine is more specifically focused on the investigation of underlying biochemical, hormonal, and gut-related causes of chronic disease. At FNR, our approach is firmly rooted in functional medicine with nutrition as the foundational tool.

We hear this often and we take it seriously. Most people who come to us after a disappointing experience elsewhere tried a program that was too generic, too limited by what insurance would cover, or too focused on supplements without the underlying lab work and personalized strategy to support them. What we do is different in depth and in duration. We spend a full hour in your initial evaluation. We run comprehensive labs interpreted for optimal ranges. We build a plan specific to your data and stay with you through the entire journey. We would encourage you to have a discovery call — the experience here is genuinely different.

Yes. While the majority of our patients are women — in part because autoimmune conditions affect women at significantly higher rates — we work with men dealing with all of the same conditions: metabolic syndrome, digestive issues, inflammation, fatigue, hormone imbalances, and more. Martin T. came to us with diabetes and had just received heart stents. He is now off insulin.

We work with children 12 and older on a case by case basis. Please mention any interest in care for a child or teenager on your discovery call and we will let you know whether we are the right fit.

This is one of the most common things we hear — and one of the most important. Conventional lab ranges are established on the average of a large, generally unhealthy population. Being ‘normal’ means you are average for that population — not that you are functioning optimally. We run labs that look at markers conventional providers often do not test, and we interpret everything through the lens of optimal function. Almost every patient who comes to us with normal labs has something we find worth addressing.

Every patient’s plan is different — which is the entire point of what we do. Most of our programs run several months and include a structured sequence of evaluations, lab reviews, and coaching appointments built around your five health pillars. We will give you a clear picture of your specific plan and timeline after your initial evaluation.

Integrative medicine typically combines conventional treatment with complementary approaches like acupuncture, massage, or herbal medicine. Functional medicine is more specifically focused on the investigation of underlying biochemical, hormonal, and gut-related causes of chronic disease. At FNR, our approach is firmly rooted in functional medicine with nutrition as the foundational tool.

No — and we want to be clear about this because it is a common fear. We do not clean out your entire cabinet on day one. We do not put everyone on the same elimination diet. Your nutrition plan is built around your specific labs, your food sensitivities, and your lifestyle. Our goal is sustainability — changes that become the way you eat, not a temporary hardship. Many of our patients tell us they actually enjoy food more after working with us because they understand what works for their body.

Supplements are part of many patient plans, but they are always based on your specific lab findings and targeted to address identified deficiencies or imbalances. We do not hand everyone the same supplement stack. And as your health improves, we work to reduce your reliance on supplements rather than increase it. Our goal is for your body to function well on its own — not to be dependent on a protocol indefinitely.

We have built our program to work with real life. Appointments can be done virtually from anywhere. Your coaching sessions are scheduled around your availability. And because we explain the why behind every recommendation, you develop the understanding to make good decisions on your own when life gets complicated. Many of our patients are traveling professionals, working parents, and people with demanding schedules who have found our approach more manageable than they expected.

Jennette hosts live educational webinars two to three times per month covering topics like hormones, inflammation, stress, thyroid health, and autoimmune disease. These are free events, typically 45 minutes, where she teaches you exactly what FNR teaches its patients — what is happening in your body, why, and what can be done about it. Many people find their way to FNR through a webinar and tell us it was the first time anything clicked. You can find upcoming webinar dates on our website.

Completely. Some of our best outcomes have come from patients who came in skeptical after trying other things that did not work. Jeffrey McCormick told us he was skeptical before joining and then called us ‘the real deal.’ Joanne N. described herself as having tried many programs with full effort and always ending up in the same place. We do not ask you to believe anything before you start — we ask you to show up for a 15-minute conversation and see what you think from there.