We’ve been told we’ve changed people’s lives forever

We’re not ones to boast but…

Discover your edge with our team of health professionals. 

Okay, we did mean to boast just a little. But only because we know what it feels like to be handed a generic health plan that doesn’t get to the bottom of finding your truest, healthiest self. Our team of holistic experts are willing to do what the others won’t…listen and investigate. 

Will also answer to: The Gut Guru

Nerds Out On: Health and performance optimization for athletes at all seasons of life.  

Best Part Of My Job: Watching my patients implement their personalized plans and achieve their health goals is what keeps me going. I'm proud to have built a team of top-notch providers who bring our patients the best evidence-backed, holistic care. 

Current Obsession: I'm all about living for the long haul, focusing on health span, not just quick fixes. Back in the day, I was all about instant gratification, but my own health journey led me to Functional Medicine. Now, I'm obsessed with playing the long health game.

Owner, Dual board certified Family and Anti-Aging Nurse Practitioner 

Lyndsy Kinghorn
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With a background spanning family, emergency, and preventative medicine, Lyndsy Kinghorn brings a comprehensive perspective. Her unique specialization focuses on the root causes of performance decline.


Lyndsy’s journey into personalized preventative care began with her own struggles—unexplained fatigue, weight gain, and mental health challenges—that the traditional 15-minute model failed to solve. This experience ignited her passion to provide the holistic, root-cause care she discovered through integrative medicine.


Lyndsy specializes in using advanced diagnostics to resolve metabolic dysfunction, hormone imbalance, and gut dysruption. She helps clients move beyond symptom management and find optimal health.


Certifications:

American Academy of Nurse Practitioners-Family Medicine

American Academy of Anti-Aging Health Practitioners-Functional Medicine

Functional Fertility Certified

Precision Medicine Fellow

Nerds Out On: Stress management. I love finding the tools and strategies to improve mental health and sleep optimization. 

Best Part Of My Job: Having the privilege of getting to know amazing people and being a witness to their challenges, strengths, struggles, and growth. 

Current Obsession: The ins and outs of middle distance and distance running. Some of my daughters are elementary, high school, and collegiate-level runners, and I love supporting and cheering for them and their teammates. 

Certified Health Coach

Jenni Terry
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After years of feeling run down and battling illness and depression, she turned to Functional Medicine, transforming her health through dedicated lifestyle changes. Now, she's passionate about helping others do the same.


She has extensive training in the functional medicine approach to lifestyle change, the psychology of eating, mind-body medicine, positive psychology, and HeartMath. Jenni uses her personal experience and expertise to guide others toward lasting health and well-being.


Based in Boise, Idaho, Jenni loves spending time in nature with her husband and four daughters, picnicking, river surfing, hiking, mountain biking, or skiing.


Certifications:

-National Board Certified Functional Medicine Health Coach

- HeartMath Certified Practitioner

-Precision Nutrition 1 Certified

Nerds Out On: Brain re-training and re-wiring & eating for brain and mental health.

Best Part Of My Job As A Coach: Holding non-judgmental space for my clients, meeting them where they are at and helping them move one step forward towards their goals.

Best Part Of My Job As An Admin: Supporting practitioners so they can focus on taking care of clients and patients.

Current Obsession: Chocolate peanut butter fat bombs-yum!

Practice Manager & Certified Health Coach

Jenni Weber
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At the heart of the FNDATN experience is Jenni Weber. As our Practice Manager, Jenni ensures that every touchpoint of the patient journey meets the rigorous FNDATN standard of excellence. With a dual certification as a Health and Life Coach from the Health Coach Institute, she brings a unique, person-centered lens to clinical operations.


Jenni believes that true wellness is a cohesive journey. Whether she is streamlining your care at FNDATN or curating a personalized wellness plan, Jenni’s mission is simple: helping you reach your highest potential, one step at a time.


Certifications:

-Health Coach Institute Certified

-Certified Holistic Gut Health Specialist (IIN)

-Precision Nutrition 1 Certified

Nerds Out On: Stress management. I love finding the tools and strategies to improve mental health and sleep optimization. 

Best Part Of My Job: Having the privilege of getting to know amazing people and being a witness to their challenges, strengths, struggles, and growth. 

Current Obsession: The ins and outs of middle distance and distance running. Some of my daughters are elementary, high school, and collegiate-level runners, and I love supporting and cheering for them and their teammates. 

Certified Health Coach

Jenni Terry
SEE HER FULL BIO
+

After years of feeling run down and battling illness and depression, she turned to Functional Medicine, transforming her health through dedicated lifestyle changes. Now, she's passionate about helping others do the same.


She has extensive training in the functional medicine approach to lifestyle change, the psychology of eating, mind-body medicine, positive psychology, and HeartMath. Jenni uses her personal experience and expertise to guide others toward lasting health and well-being.


Based in Boise, Idaho, Jenni loves spending time in nature with her husband and four daughters, picnicking, river surfing, hiking, mountain biking, or skiing.


Certifications:

-National Board Certified Functional Medicine Health Coach

- HeartMath Certified Practitioner

-Precision Nutrition 1 Certified

Nerds Out On: Brain re-training and re-wiring & eating for brain and mental health.

Best Part Of My Job As A Coach: Holding non-judgmental space for my clients, meeting them where they are at and helping them move one step forward towards their goals.

Best Part Of My Job As An Admin: Supporting practitioners so they can focus on taking care of clients and patients.

Current Obsession: Chocolate peanut butter fat bombs-yum!

Practice Manager & Certified Health Coach

Jenni Weber
SEE HER FULL BIO
+

At the heart of the FNDATN experience is Jenni Weber. As our Practice Manager, Jenni ensures that every touchpoint of the patient journey meets the rigorous FNDATN standard of excellence. With a dual certification as a Health and Life Coach from the Health Coach Institute, she brings a unique, person-centered lens to clinical operations.


Jenni believes that true wellness is a cohesive journey. Whether she is streamlining your care at FNDATN or curating a personalized wellness plan, Jenni’s mission is simple: helping you reach your highest potential, one step at a time.


Certifications:

-Health Coach Institute Certified

-Certified Holistic Gut Health Specialist (IIN)

-Precision Nutrition 1 Certified

Nerds Out On: How inflammation impacts the body and brain.

Best Part Of My Job: I love learning about Functional Medicine and Health Coaching from the FNDATN Team. More about what it takes to holistically heal the body. Seeing firsthand the impact it has on our patients is extremely rewarding. 

Current Obsession: Savory oats- just trust me!

Patient Care Coordinator
Certified Health coach

Quinn McRoberts
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Quinn’s journey into functional medicine began through her own health challenges and a desire to understand the body beyond symptom management. After experiencing how frustrating it can be to search for real answers, she was inspired to dig deeper into the foundations of health, especially nutrition.


With a background in education and a passion for wellness, Quinn discovered holistic nutrition through undergraduate research at Montana State University and the Institute for Integrative Nutrition. She is currently building a nutrition coaching business alongside her role at FNDATN, helping others identify healing opportunities and create sustainable habits for long-term wellness.


Quinn’s approach is rooted in bio-individuality, with a focus on whole foods, connection to nature, and personalized support. Outside of her work, she enjoys spending time with friends and family, whether nordic skiing, wake surfing, or backpacking.


Certifications:

BA in Liberal Studies, Montana State University

Certified Integrative Nutrition Health Coach, IIN

Nerds Out On: All things gardening.

Best Part Of My Job: The best part of my job is having the privilege to walk alongside fellow humans as they land in the power of their breath and are reminded of their own inner wisdom.

Current Obsession: Diving deep into all the ways I can continue to navigate a healthy lifestyle for myself from a space of love, authenticity, and a whole lot of grace. 

Trauma-Informed Somatic Breathwork Practitioner

Faith Duckett
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Over the years, it became clear that the missing piece in many patients' health journeys was mental health optimization. Recognizing that talk therapy isn't for everyone, the team developed a keen interest in the transformative power of breathwork.


Through personal experience, Faith realized just how impactful breathwork can be and its powerful impact on optimal health.


Faith is a trauma-informed Breathwork practitioner known for her soothing voice and gentle spirit. Her sessions are customized around each individual patient's needs—whether it's self-love, trauma work, or emotional release.


Sessions with Faith are included in all programs and most membership offerings.

Nerds Out On: How inflammation impacts the body and brain.

Best Part Of My Job: I love learning about Functional Medicine and Health Coaching from the FNDATN Team. More about what it takes to holistically heal the body. Seeing firsthand the impact it has on our patients is extremely rewarding. 

Current Obsession: Savory oats- just trust me!

Patient Care Coordinator
Certified Health coach

Quinn McRoberts
SEE HER FULL BIO
+

Quinn’s journey into functional medicine began through her own health challenges and a desire to understand the body beyond symptom management. After experiencing how frustrating it can be to search for real answers, she was inspired to dig deeper into the foundations of health, especially nutrition.


With a background in education and a passion for wellness, Quinn discovered holistic nutrition through undergraduate research at Montana State University and the Institute for Integrative Nutrition. She is currently building a nutrition coaching business alongside her role at FNDATN, helping others identify healing opportunities and create sustainable habits for long-term wellness.


Quinn’s approach is rooted in bio-individuality, with a focus on whole foods, connection to nature, and personalized support. Outside of her work, she enjoys spending time with friends and family, whether nordic skiing, wake surfing, or backpacking.


Certifications:

BA in Liberal Studies, Montana State University

Certified Integrative Nutrition Health Coach, IIN

Nerds Out On: All things gardening.

Best Part Of My Job: The best part of my job is having the privilege to walk alongside fellow humans as they land in the power of their breath and are reminded of their own inner wisdom.

Current Obsession: Diving deep into all the ways I can continue to navigate a healthy lifestyle for myself from a space of love, authenticity, and a whole lot of grace. 

Trauma-Informed Somatic Breathwork Practitioner

Faith Duckett
SEE HER FULL BIO
+

Over the years, it became clear that the missing piece in many patients' health journeys was mental health optimization. Recognizing that talk therapy isn't for everyone, the team developed a keen interest in the transformative power of breathwork.


Through personal experience, Faith realized just how impactful breathwork can be and its powerful impact on optimal health.


Faith is a trauma-informed Breathwork practitioner known for her soothing voice and gentle spirit. Her sessions are customized around each individual patient's needs—whether it's self-love, trauma work, or emotional release.


Sessions with Faith are included in all programs and most membership offerings.

Nerds Out On: Skin health

Best Part Of My Job: Helping patients feel genuinely confident in their own skin and achieve that real-life glow.

Current Obsession: Growing my content platform and making skin education accessible in a sea of misinformation, and currently also deep in a bathroom and closet remodel at home.

Certified Physician assistant (PA-C)

Chelsea Heffner
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Chelsea is a board-certified Physician Assistant offering medical aesthetics services at Foundation Functional Medicine and Aesthetics in Boise, Idaho. An Idaho native, Chelsea is passionate about providing thoughtful, evidence-based care to her local community.


Chelsea completed her undergraduate education at the College of Idaho before earning her Master of Physician Assistant Studies from the Massachusetts College of Pharmacy and Health Sciences in Boston. She has spent over a decade practicing as a Physician Assistant, building extensive experience in orthopedic surgery before transitioning her focus to medical aesthetics and skin health.


At FNDATN, Chelsea provides neurotoxin injections, chemical peels, microneedling with PRP, hair loss prescriptions, and personalized skincare consultations including prescription dermatology medications when indicated. Her treatment philosophy centers on skin health, natural-looking results, and helping patients achieve a real-life glow that feels authentic and sustainable.

Nerds Out On: I am a life long learner and nerd out on anything that advanced my knowledge.

Best Part Of My Job: The most meaningful part of my work is helping clients reach their health goals. 

Current Obsession: I genuinely love diving into anything new that challenges me to grow. While I promised my family I’d take a break from school, I still catch myself dreaming about the day I can officially call myself Dr. Brittany.

family Nurse practitioner

Brittany Heyden
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Brittany has over 25 years of experience in healthcare. She earned her advanced practice degree from Maryville University and has completed additional training in functional medicine through the Institute for Functional Medicine and the School of Applied Functional Medicine.


Her clinical approach evolved after navigating her own health challenges, which led her to look beyond conventional care and pursue deeper training in root-cause medicine. Through this work, she developed a strong focus on identifying underlying imbalances and helping patients make sense of complex or persistent symptoms, especially when they have been told everything is “normal.


Certifications:

American Academy of Nurse Practitioner-Family Medicine

Institute for Functional Medicine

The School of Applied Functional Medicine

Nerds Out On: Skin health

Best Part Of My Job: Helping patients feel genuinely confident in their own skin and achieve that real-life glow.

Current Obsession: Growing my content platform and making skin education accessible in a sea of misinformation, and currently also deep in a bathroom and closet remodel at home.

Certified Physician assistant (PA-C)

Chelsea Heffner
SEE HER FULL BIO
+

Chelsea is a board-certified Physician Assistant offering medical aesthetics services at Foundation Functional Medicine and Aesthetics in Boise, Idaho. An Idaho native, Chelsea is passionate about providing thoughtful, evidence-based care to her local community.


Chelsea completed her undergraduate education at the College of Idaho before earning her Master of Physician Assistant Studies from the Massachusetts College of Pharmacy and Health Sciences in Boston. She has spent over a decade practicing as a Physician Assistant, building extensive experience in orthopedic surgery before transitioning her focus to medical aesthetics and skin health.


At FNDATN, Chelsea provides neurotoxin injections, chemical peels, microneedling with PRP, hair loss prescriptions, and personalized skincare consultations including prescription dermatology medications when indicated. Her treatment philosophy centers on skin health, natural-looking results, and helping patients achieve a real-life glow that feels authentic and sustainable.

Nerds Out On: I am a life long learner and nerd out on anything that advanced my knowledge.

Best Part Of My Job: The most meaningful part of my work is helping clients reach their health goals. 

Current Obsession: I genuinely love diving into anything new that challenges me to grow. While I promised my family I’d take a break from school, I still catch myself dreaming about the day I can officially call myself Dr. Brittany.

family Nurse practitioner

Brittany Heyden
SEE HER FULL BIO
+

Brittany has over 25 years of experience in healthcare. She earned her advanced practice degree from Maryville University and has completed additional training in functional medicine through the Institute for Functional Medicine and the School of Applied Functional Medicine.


Her clinical approach evolved after navigating her own health challenges, which led her to look beyond conventional care and pursue deeper training in root-cause medicine. Through this work, she developed a strong focus on identifying underlying imbalances and helping patients make sense of complex or persistent symptoms, especially when they have been told everything is “normal.


Certifications:

American Academy of Nurse Practitioner-Family Medicine

Institute for Functional Medicine

The School of Applied Functional Medicine

Your time is your most valuable asset.
We treat it that way.

The FNDATN Story

High performers don't have time to feel average. They don't have time for a revolving door of specialists, months of inconclusive labs, or a 15-minute appointment that ends with a prescription and zero answers.
They need a team that moves fast, thinks deep, and gets it right.

That's exactly what FNDATN was built for.

I'm Lyndsy Kinghorn — Dual Board Certified Family and Anti-Aging Nurse Practitioner, Precision Medicine Fellow, founder of FNDATN, and someone who has lived the exact frustration my clients come to me with.

At the height of my career as an Emergency Department NP — training hard, doing everything "right" — my body started failing me. Fatigue, weight gain, brain fog, gut issues. My colleagues handed me prescriptions. I handed them back. I knew there was a root cause, and I wasn't going to manage symptoms for the rest of my life.
That search led me to Functional Medicine. And it changed everything.

Now I use advanced diagnostics, precision protocols, and over a decade of clinical expertise to do for my patients what conventional medicine couldn't do for me: find the real answer, build a real plan, and deliver real results — on your timeline.

At FNDATN, we don't make you fit into a system. We build a system around you.

Whether you're a CEO protecting your sharpest years, an athlete chasing peak performance, or a driven individual who simply refuses to accept "normal" as good enough — this is your practice.

The ROI of longevity medicine isn't just measurable in lab values. It shows up in boardrooms, in marriages, on trails, and in the mirror. It shows up in the life you actually want to live.

We handle the complexity. You show up and perform.

mutual respect

We have and show respect for each patient we see.

Conscious Commitment

We are all in, all the time. 

Around Here We Value:

integrity

We never make promises we can’t keep. 

giving a damn

We pay attention to the details and never cut corners.

"The information I’ve learned is invaluable and most importantly I feel so much better both physically and mentally."

I spent years going to “conventional” doctors only to be dismissed, over prescribed, rushed through and basically ignored. I feel so fortunate to have found Lyndsy and her practice because she spends time really getting to know her patients, listening to their needs and then creates actual change.

jean

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Feel like you finally found the right team to guide your optimal health journey?