Find a Practitioner

Connect with a functional medicine practitioner in your area who's using the Optimal DX platform in their practice. Practitioners who've been through our FBCA Mastery Training Program and those who've gone through the certification process are also indicated with the appropriate badge.

Dr. Jonathan Truhlar

DC, NMD, CNS, LDN

DoctorTruhlar.com
Channahon, Illinois

About the practitioner

State of Illinois: Chiropractic Physician - License # 038-009845 State of Illinois: Licensed Dietician Nutritionist - License # 16-4009729 State of Michigan: Chiropractor - License # 2301010121

Medical Specialties

Cardiometabolic
Detox
Family
GI Health
Immune Health
Nutrition
Thyroid
Women's Health

Graduate School Education

American Naturopathic Medical Institute
Certification Board for Nutrition Specialists
Palmer College of Chiropractic

Professional Associations

OPTIMAL — THE ODX BLOG

Expand Your Knowledge

Browse our resources to learn more about Functional Blood Chemistry Analysis, blood biomarkers, the functional approach to medicine and more.

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Biomarkers

Autoimmune Gastritis Disrupts Digestion and Nutrition

Discover the impact of autoimmune atrophic gastritis on digestion and nutrient absorption, including symptoms, related conditions, and the importance of early diagnosis.

Biomarkers

Nutrition Tips for Osteoarthritis

Discover how nutrition, including Mediterranean and plant-based diets, can support joint health and manage osteoarthritis symptoms effectively.

Biomarkers

Stress Changes Your Body: What Cortisol and DHEA-S Can Tell You

Discover how cortisol and DHEA-S reveal your body's response to stress and the importance of hormonal balance for health and aging. Learn more today.

Biomarkers

Is Your Blood Pressure Sensitive to Salt?

Discover the link between salt and blood pressure, learn how sodium and potassium balance impacts your health, and find tips for managing salt-sensitive hypertension.

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Find a Practitioner

Dr. Jonathan Truhlar

About the practitioner

Medical Specialties

Graduate School Education

Professional Associations

Expand Your Knowledge

Autoimmune Gastritis Disrupts Digestion and Nutrition

Nutrition Tips for Osteoarthritis

Stress Changes Your Body: What Cortisol and DHEA-S Can Tell You

Is Your Blood Pressure Sensitive to Salt?