Your Premier Provider of Functional Medicine and IV Hydration Services in Northern Illinois

We help you to live the vibrant life that you dream of, each and every day.

Experience the advantage of Natural Health through Functional Medicine and IV Therapy Services

The Functional Medicine MD is the Premier Functional Medicine and IV Therapy Clinic in McHenry, Lake and Boone Counties.

Founded in 2018 by Dr. Lela Iduna – a Yale trained Medical Doctor and IFM certified functional medicine practitioner with over 25 years of experience in medicine. 

Functional medicine looks at the root cause of illness – unlike Western medicine which ascribes a pill to a diagnosis.  Sometimes there’s no diagnosis for diseases and those are the ones that Western medicine is not good at.  For example, non-specific abdominal pain is often very frustrating to patients because all the tests never leave a definite diagnosis.  

Functional medicine looks at the biochemistry of each cell and does specific stool testing and food allergy testing to help treat these non-specific symptoms.  

Our Services

The Functional Medicine MD offers a full range of wellness-optimizing services, including functional medicine treatments and tests (ANS testing, Nitric Oxide testing, early cancer detection with the IvyGene test), IV Hydration Therapy, IV Vitamin Therapy, Chelation Therapy, Growth Factor Injections, Argentyn 23 Colloidal Silver Therapy and extensive lab work options.


"My friends and I noticed that my eyes literally looked brighter and more vibrant. I'm definitely looking forward to my next visit!"

How Our Process Works

Step 1

Contact Our Office

First you will contact our office to set up an initial appointment.  Previous to your appointment you will complete our online form.

Step 2

Your First Appointment

At your first appointment, Dr. Iduna will take a detailed health history and go over your forms and make recommendations for testing – which can be completed during your initial visit.

Step 3

Customize Your Health Plan

Two weeks after your initial appointment, you will meet again with Dr. Iduna to review the results of your tests and determine a personalized treatment plan that will help you reach your health goals as quickly as possible using natural methods.

We also offer a free 15 minute consultation where Dr. Iduna will learn more about your health history and make personalized recommendations on the IV Therapy options that will be able to bring optimal nutrients and energy back to your cells.

man hugging wife naturally healthy from functional medicine

Health is not simply the absence of disease.

Health is the perfect balance a system, creating a sense of well being. This cannot be accomplished by treating each symptom in isolation to the rest of the system or waiting till we cannot deal with the symptom and it is limiting our capacity to function fully.

The human body is a complex system with many parts, each one interconnected to the other by several pathways. 

If one pathway breaks down, there are several others still supporting the body to function. Much like several pillars holding up a bridge, when several of the foundational pillars are damaged, the integrity of the bridge become compromised. Similarly, when the human body starts showing obvious signs of disease, several foundational pathways have been compromised, now making it urgent to seek help.

athlete crouched optimized from iv hydration therapy

Healing and repairing these base pillars is thus the striving of functional or integrative medicine, before they cause a devastating problem. We partner with you to stay healthy and live life the best you can!

Natural Functional Medicine and IV Therapy Options

Functional Medicine

Integrative, Natural Health

Functional Medicine addresses the underlying causes of disease, like looking at the roots of a tree.  This form of treatment focuses on using natural methods to bring about fast and long lasting health.

Functional Testing

Prevent Disease Before it Happens

Wouldn’t you rather know if you were on the road to poor health as soon as possible?  Functional Testing is comprised of several simple and unique testing methods that can detect the likelihood of serious health issues before they manifest.

IV Hydration Therapy

Feel Great, Optimize Performance

Much more than just a MediSpa experience.  Our IV Hydration Therapy introduces vital nutrients swiftly into your body in a way that is simple to absorb.  Each infusion is tailored to your body’s unique needs.  You’ll definitely come back again.

You Can Trust The Functional Medicine MD

Hear What Our Satisfied Patients Have to Say:

Ready to Feel Your Best?