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Dr. Jill

Dr. Jill is Your Functional Medicine Expert!  She uses functional medicine help you find answers to the cause of your illness and the nutritional and biochemical imbalances that may be making you feel ill.

Our Clinic

Dr. Jill Carnahan, Medical Director and Founder of FLATIRON FUNCTIONAL MEDICINE is partnering with Dr. Robert Rountree of Boulder Wellcare, Inc. Her office is located in beautiful Boulder, Colorado. She is currently taking new patients by referral only.

Our Store

It's easier than ever to get what you need to stay healthy! Professional grade products from Thorne Research and Prothera delivered to your door. For instructions on how to order Thorne Research and Prothera/Klaire Labs products online simply click here and follow instructions.

Functional Medicine

Functional medicine addresses the underlying causes of disease, using a systems-oriented approach and engaging both patient and practitioner in a therapeutic partnership. It is an evolution in the practice of medicine that better addresses the healthcare needs of the 21st century.

Dr. Jill’s Blog

Symptoms and Causes of Adrenal Fatigue

Quiz: Could you have Adrenal Fatigue?

Take this simple quiz to find out if you might have Adrenal Fatigue or Adrenal Dysfunction… Do you have difficulty awakening from sleep in the morning, often hitting the snooze button multiple times? Do you need coffee to get going in the morning? Have you recently gained weight, especially around the middle? Do you feel like you get every […]

Chocolate Hemp Seed Pudding

Chocolate Hemp Seed Pudding

Satisfy your sweet tooth without feeling guilty by whipping up a batch of this delicious Chocolate Hemp Seed Pudding! This recipe uses only four – VERY HEALTHY – ingredients, making it a quick and easy treat. All you need is hemp seeds, bananas, cocoa powder, and coconut milk! So skip the after dinner ice-cream and serve […]

Strawberry Apple Paleo Cobbler

Strawberry Apple Paleo Cobbler

Does a delicious dessert free of gluten, dairy, soy, eggs, sugar, grains AND peanuts sound too good to be true? It’s not (!!), thanks to Amie Valpone and her delicious Strawberry Apple Paleo Cobbler recipe! She says, “We’re going beyond your typical crumble here, folks…no need for butter or sugar or any other fake additives. This treat is a whole lotta […]

Sweet Potato Casserole

Sweet Potato Casserole

You’ll think Christmas is right around the corner when the sweet scent of this incredibly flavorful Sweet Potato Casserole fills your kitchen! This delicious recipe was created by Rena Hodel! She says, “Our family of 6 did not leave 1 bite, so double the recipe if cooking for a large group. I thought it was delicious because of the […]

GMO on Warning Road Sign on Sunset Sky Background.

GMO Myths and Truths: Do You Know The Facts?

GMO Myths and Truths Genetically modified crops and foods are neither safe nor necessary to feed the world, a new report by genetic engineers shows. The second edition of GMO Myths and Truths, co-authored by genetic engineers Dr John Fagan and Dr Michael Antoniou and researcher Claire Robinson is a free online download by the sustainability […]

What people are saying about Dr. Jill Carnahan


Dr. Jill recently treated a family member for a chronic problem that other doctors were unable to uncover. Her persistence and integrative approach was finally what led to a diagnosis after months of no answers. What was even more amazing was Dr. Jill did this while she was 1000 miles away in a new practice! She was able to offer phone consultations and email communications were always returned quickly. She is top notch!


I wanted you to know that as an Integrative Functional Medicine doctor you are 10 out of 10. In fact I tell people that you are the only one in the USA that could effectively treat my condition, and I really believe that :-)


I believe that people who go to functional medicine docs are typically desperate. We are the patients who are at the end of our proverbial rope, tired of taking drug after drug with no relief, and who traditional MDs don’t know what to do with. We just dream of a life without pain and to be able to function again. Thanks to Dr. Carnahan, I have no signs of the rheumatoid arthritis I was diagnosed with in 2012, and I’m regaining function that was stolen by the MS I was diagnosed with in 1991. I am recovering and regaining my life. Dr. Jill Carnahan is simply phenomenal.