Research Based Medical Nutrition Therapy:

At Illinois Dietitians, L.L.C., we follow the protocols and methods recommended by the Academy of Nutrition and Dietetics.  Our medical nutrition therapy is research based.  

Contact us:

What is a Registered Dietitian?

- A registered dietitian (R.D.N. or R.D.) is the medical provider who is licensed by the state to use medical nutrition therapy in the prevention and treatment of conditions and diseases, such as obesity, diabetes, kidney disease, and heart disease. 

- A registered dietitian will help you to create a healthy and delicious eating and lifestyle plan - not a fad diet that you cannot comply with for the long term - but a healthy plan that you can enjoy for the rest of your life.

- Everyone should have a registered dietitian on their team of regular health care providers. You should visit your registered dietitian at least once a year for a "nutrition and lifestyle check-up". During these visits your registered dietitian will help you to make your eating, lifestyle, and physical activity plan a healthy one.

- Creating a healthy eating plan, with the help of a registered dietitian, helps to prevent and treat many common conditions and diseases that are affected by nutrition, lifestyle, and physical activity choices, and helps you live a long, vigorous, independent, and healthy life. 

- Healthy nutrition is good medicine, and when paired with healthy lifestyle habits, regular physical activity, and stress management, it forms the foundation upon which much of health and medicine rest.

- Form a working relationship with a registered dietitian.  It's one of the best decisions that you will ever make!


Book an appointment with Illinois Dietitians LLC

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Pre-Diabetes, Meditation, and Smoking Cessation Classes                             

Call a Registered Dietitian

​We offer Telehealth, phone and e-mail coaching.


For more information, please call or text us at 708-285-1347, e-mail us at, or send us a message        through this website.

 Physical Activity...

                  Get a minimum of 1 Hour of 

                    Moderate Physical Activity 

                       Every Day of the Week

Some Healthy Meal and Snack Ideas...

For more information, please call or text us at 708-285-1347, e-mail us at, or message us through this website.

We Offer Telehealth Services.

Contact Us To Make An Appointment.  

Disordered Eating

We help you to follow and adhere to a healthy eating plan as you move through your outpatient program.

​​​​​Weight Management Nutrition

At Illinois Dietitians, L.L.C., we take into consideration your physical and emotional needs as we gently and slowly help you to move into a health lifestyle. We help you to plan a healthy lifestyle plan, a delicious eating plan, and a regular physical activity program that is comfortable for you.  We help you to emotionally move away from an unhealthy lifestyle that can feel overwhelming and depressing, and into one that is healthy, emotionally freeing, and satisfying.


Instead of eating a bowl of sugar coated cereal or a pastry for breakfast, eat a colorful and delicious salad for breakfast! Read More 

In striving to help you, we help to answer questions and thoughts like these...

"Can we create a lifestyle, eating, physical activity, and stress reduction plan that is healthy, delicious, satisfying, and one that I can follow throughout my lifetime?"

"How can I lose weight comfortably, and maintain a healthy weight throughout my life?"

"Can you help me with my eating disorder? I don't feel well, and I need an understanding R.D. to help me though this."

"How can I control my diabetes by making a few changes in my eating plan?"

"How can I lower the amount of diabetes medications and insulin that I am taking by making a few changes in my eating plan?"

"I really want to quit smoking. Can you help me to quit?"

"I am a caregiver. I feel tired, burnt out, depressed, and hopeless. Can you help me to learn how to take care of myself so that my loved one and I move ourselves back into a life of health?"

At Illinois Dietitians L.L.C. ... 

We use nutrition, lifestyle, and physical activity choices to help you attain and maintain optimal health, and to prevent and treat conditions and diseases.

We practice whole person wellness that takes into consideration your physical and emotional health.

We Offer Our Services as...

-   Individual and group sessions
-   Counseling in our office, in-home visits

-   Telehealth, phone, and e-mail coaching
-   Corporate wellness programs and classes
-   Spa and fitness club consultation and classes
-   Assisted living facility and daycare consultation
-   School wellness programs and classes
-   Library and community group programs and               wellness classes
-   Grocery store tours

Illinois Dietitians, L.L.C.

Discounts on Our Services...

We offer a 15% discount on our fees to patients who pay us out of pocket and then send the insurance form to the insurance company.

Caregiver's Health and Nutrition

At Illinois Dietitians L.L.C., caregivers have a special place in our hearts.  In the process of caring for those in need, caregivers often ignore their own nutritional, physical and emotional needs.  We offer support and offer classes that focus on the lifestyle, nutritional, physical, and emotional needs of caregivers.  

When you need help, we are there for you...


The Dietitian's Health Tip ...

Eat healthy, natural, organic, wild food. 

Weight Management, Improved Energy

​Healthy Nutrition, Lifestyle, and Physical Activity Counseling

Nutrition, Lifestyle, and Physical Activity for a Healthy Immune System

​Pre-Diabetes, Diabetes, and Diabetes Prevention Classes

Heart Disease, including Disordered Lipids and Hypertension                                                                

​Food Intolerances and Allergies

Cancer Prevention and Treatment

Celiac Disease, Irritable Bowel, Other GI Disorders, Lactose Intolerance                              

Autoimmune Disorders, such as M.S. and R.A.   

Nutrition for Eye Health - Macular Degeneration

​Nutrition, Lifestyle, and Physical Activity Choices for Healthy Skin

Disordered Eating

Nutrition for Depression                                     

​Memory Preservation Nutrition, including Alzheimer's and Other Dementia's

Caregiver's Health and Nutrition

​Meditation Classes - Stress Management

​Smoking Cessation Classes

​Call A Registered Dietitian (telehealth, phone, and e-mail coaching)

Insurance Co-Pays and Deductibles...

It is the patient's responsibility to contact their insurance company and to know their insurance coverage. It is not the responsibility of the provider. 

Co-Pays and deductibles are the responsibility of the patient and must be paid in full at the time of service.

Stress Management - Meditation Classes

At Illinois Dietitians, L.L.C., we understand that life can  be stressful.  We offer individual and group meditation and stress reduction classes that help to lower your stress level.

Through the use of meditation, stress management techniques, healthy nutrition, physical activity, and lifestyle counseling, we help to make your life healthy calm, and emotionally satisfying.    

For more information, please call or text us at  708-285-1347, e-mail us at, or send us a message through this website.

We Accept...​

Private Insurers, Medicare, Health Savings Accounts, Visa, MasterCard, American Express, Discover​, and Personal Checks.         

My Dietitian Says... 

Regular Hand Washing...

- Always wash your hands before touching food.

- When Dining Out... It's a good idea to wash your hands before eating. Hand washing is key to preventing the transmission of disease. Germs travel from surfaces that you have touched to the food that you eat. Washing your hands is a simple action that has wonderful health benefits. While in the lavatory, use a clean paper towel to turn off the faucet and to open the door when leaving. These surfaces are often forgotten by the cleaning crew, and may harbor disease causing organisms - not something that you want to bring to the table with you!

Smoking Cessation

Eileen Hourihan McCarthy is a recognized Freedom From Smoking Cessation Facilitator with the American Lung Association. We offer a Smoking Cessation program that follows the standards established by the American Lung Association.

​Our program is a structured program that is individual or group based, and achieves it's objectives through learning life skills that promote smoking cessation and a healthy lifestyle. The program is comprised of 8 sessions over 7 weeks.


Pre-Diabetes, Diabetes Prevention Program

We offer a Pre-Diabetes Prevention - Lifestyle Change Program that follows the standards established by the Diabetes Prevention Recognition Program, at the Centers for Disease Control. 

We offer a structured lifestyle change program that can be individual or group based, and achieves its objectives through learning life skills that promote healthy eating, weight loss, lifestyle change, and regular physical activity habits.


Food Intolerances and Allergies

We determine foods that you react to and help you to make a healthy eating plan that will keep you healthy for life.

You can schedule your own appointment here -


Eileen Hourihan McCarthy, M.F.N., B.S., B.A., R.D.N., L.D.N., C.P.T., C.M.T.

Director, Registered Dietitian, Lifestyle Coach (DTTAC), Facilitator (ALA), Certified Personal Trainer, (NASM), Certified Meditation Teacher, Lecturer,  Writer, Photographer/Artist, Covid-19 Contact Tracer (Johns Hopkins University​​)

Illinois Dietitians, L.L.C.

The Medical Arts Building 
715 Lake Street, Suite 220 
​Oak Park, Illinois 60301

And, Illinois Dietitians, L.L.C. is also located in southwestern Michigan

Phone:       708-285-1347

Fax:             708-356-6611

Hours:        Monday - Friday 8 a.m. - 8 p.m.

Some of the Services We Offer are...

General Nutrition and Wellness:                                 

-  Healthy eating plans of all kinds, including the

   Anti-Inflammatory Diet

   Mediterranean Diet

   Vegetarian and vegan eating plan​

-  Healthy nutrition for seniors, middle aged                    adults, young adults,teens, and children

Sports nutrition

Medical Nutrition Therapy:

-  Weight Management and Bariatric Counseling

-  Diabetes, Pre-Diabetes, and the Metabolic                  Syndrome

-  Cardiovascular Disease, including                                   hypertension, high LDL cholesterol, high                       triglycerides, low HDL cholesterol, heart failure

-   Celiac Disease, Irritable Bowel Syndrome, and           other gastrointestinal diseases

-   Lactose Intolerance

-   Food Intolerances and Allergies


-   Autoimmune Disorders, such as Rheumatoid             Arthritis and Multiple Sclerosis

-   Osteoporosis and Osteopenia

-   PCOS

-   Memory Preservation Nutrition, including                    Alzheimer's Disease and other dementia's  

-   Nutrition for Depression

-   Nutrition for Macular Degeneration           

-   Nutrition for Restless Legs Syndrome

-   Caregiver's Health and Nutrition

​-   Certified Personal Trainer Services