Functional Diagnostic Nutrition (FDN)

Many people live with ongoing health issues that never seem to improve. They visit doctors, specialists, and alternative practitioners, yet their symptoms persist—even when lab results show everything is “normal.” Treatments manage symptoms but don’t address root causes, leaving clients stuck in a frustrating cycle of trial and error. As their search for a cure continues, their well-being declines, and hope fades. When clients don’t get the results they need, the impact extends beyond their own health. Limited by symptom-focused methods, practitioners struggle to find effective solutions, weakening client trust and slowing referrals, making it difficult for practices to grow.

A New Approach to Lasting Health
Functional Diagnostic Nutrition (FDN) offers a powerful and effective solution, built on the belief that better Client outcomes drive all other successes. It equips health practitioners with the tools and knowledge to identify and address the root causes of health issues— not just manage symptoms. FDN’s education model combines advanced science, practical application, and Client-centered support. Students learn to use functional lab tests that provide deeper insights into the body’s systems, allowing for more accurate and personalized care.

“We don’t train practitioners to diagnose or treat specific conditions. Instead, we empower clients to heal by addressing underlying dysfunctions,” says Reed Davis, chairman and founder of FDN. This method focuses on investigating the body’s systems to uncover dysfunction at its source. Rather than simply relieving symptoms, it seeks to correct deeper imbalances.

Training That Makes a Difference

FDN’s training program is designed to help health professionals succeed. The course teaches students how to run and interpret functional lab tests, including blood, saliva, urine, and stool tests. Practitioners identify imbalances in hormones, immunity, digestion, detoxification, energy production, nervous system, and oxidative stress. This approach provides a complete picture of the body’s condition, rather than just isolated symptoms.

A clear and systematic method shapes the entire training. FDN has developed a step-by-step process for investigating health issues, enabling practitioners to identify multiple healing opportunities for every client. The focus on addressing underlying causes creates long-term health solutions.

Client education is also an essential part of the program. Practitioners learn how to teach clients the importance of lifestyle changes, including diet adjustments, stress management, and environmental factors. Coaching clients through these changes increases compliance and improves results, turning them into active participants in their healing journey.

A Real Story of Transformation

The impact of FDN’s approach is best seen in its client success stories. One woman came to a wellness clinic desperate for answers. She had gained 40 pounds due to medication prescribed for chronic hives. Her doctor told her she had two choices—live with the hives or live with the weight gain. Frustrated and defeated, she sought a better solution.

An FDN-trained practitioner provided that solution. Through functional lab testing, they identified toxic triggers in her diet and environment. After removing those triggers, her condition improved rapidly. Within nine days, she stopped taking her medication. Soon after, the hives disappeared completely. As her body healed, weight loss followed naturally. Within weeks, she shed 13 pounds and regained her energy and confidence.

FDN offers more than just a training program—it provides a system that changes lives. By helping health practitioners move beyond guesswork and symptom management, FDN brings a better approach to health and wellness—one focused on solving real issues and creating lasting change.