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Functional Diagnostic Nutrition

Are you having trouble losing weight despite your best efforts?

Do you experience digestive problems and feel tired & fatigued all the time?

Do you suffer from persistent symptoms & health issues that don’t go away no matter what you try?

You’re frustrated. You’re disappointed. You’re confused. You’ve tried it all: diets, pills, lotions, and potions—but to no avail. Maybe you’ve seen some “change” and lost some weight, only to gain it all back (and then some). You may have tried various meal systems, one after another, or gone back to the same one that failed you each time.

Diets don’t work. Fads fade. There are no shortcuts or magic pills to sustainable weight loss or optimal health. You don’t need more empty promises—you want answers and you demand solutions.

Stop guessing -- get the answers to your questions and the solutions to your health issues with Functional Diagnostic Nutrition.

What is Functional Diagnostic Nutrition?

Functional Diagnostic Nutrition (FDN) is an emerging field and body of work that bridges the gap between clinical nutrition and functional medicine. FDN is a type of detective work that seeks to identify and correct the underlying causes and conditions that lead to common (and sometimes not-so-common) health complaints. With Functional Diagnostic Nutrition, the goal is not to diagnose or treat any disease, but instead identify the root cause of physiological imbalances in the body that result in dysfunction.

How Does FDN Work?

FDN utilizes a series of comprehensive nutritional & lifestyle assessments along with functional lab testing to identify malfunctions at the base level within the following systems:

  • Hormone
  • Digestion & Intestinal Barrier
  • Immune
  • Detoxification

Functional Diagnostic Nutrition involves a process of probing & analyzing and continuous course correction until your body is healed and optimal function is returned -- FDN achieves this through the implementation of drugless protocols & lifestyle enhancement that support the body’s innate healing ability. In addition, this healing process is facilitated by eliminating blocking factors including environmental, lifestyle, antigenic, inflammatory and pathogenic stressors.

FDN holds the utmost respect for biochemical individuality and as such seeks to tailor nutrition to each person versus a “one-size-fits-all” approach. The optimal nutrition and supplemental protocols from FDN cause little to interference with any current medical treatments and in fact are often complementary to aid in the healing process.

Common vs Normal

Common does not mean normal - many individuals walk around assuming the aches, pains, and symptoms they experience are just part of everyday life - but we are designed for optimal health and function. Our bodies are designed to function at an optimal level – any deviation from that in the various forms of “normal” issues that people experience regularly may instead be caused by underlying, subclinical health issues that over time, if left unaddressed, can result in further dysfunction of the body and more dramatic health problems. Think of these health complaints/symptoms as “signals” being sent from various areas of your body to inform you that something isn’t quite right – that your body has fallen out of homeostasis or balance.  By investigating and discovering internal malfunctions through listening, collecting information, and utilizing easy-to-use functional lab kits, we work with you to eliminate such malfunctions through diet and lifestyle modifications, as well as natural supplement protocols.

FDN is designed to empower you to get to the source of and overcome health challenges such as

  • Stubborn weight & fat storage
  • Headaches & Mental Fogginess
  • Fatigue
  • Chronic colds & illnesses
  • Skin rashes & conditions
  • Digestive disorders (heartburn/GERD, IBS, etc.)

For further illustration, let’s look at the systems that FDN serves to work with and heal.


FDN focuses on Steroidal Hormone Balance and correcting the hormone metabolic pathway inefficiencies that can be directly affected by stress. Stress is more than just what you experience with a demanding boss or hectic schedule, stress comes in a variety of forms that can over time fatigue the body’s adrenal glands and create a cascade of problems with the hormonal system:

Known External Stress - Life and Environmental stressors

  • Mental/Emotional –fear, excitement, worry, anxiety, etc
  • Physical –fractures, muscle injuries, nerve compression, radiation, electromagnetic fields, etc
  • Existential angst –lack of purpose or meaning in life

FDN - Hidden Internal –inflammatory, pathological

  • Poor body chemistry, poor energy production and energy distribution
  • Blood sugar problems
  • Inflammatory foods
  • Parasites, bacteria, fungi and viruses
  • Pesticides, herbicides, toxic chemicals, metals, alcohol, drugs
  • Other dysfunctions and weaknesses in any area of the body

With chronic stress over time, the important hormones cortisol and DHEA become unbalanced and impact a wide array of organs, systems and bodily functions:

FDN Chart












FDN seeks out any hormonal imbalances and helps guide you to rebalance the pathways, reduce your stress load, and improve hormone function.

For more on adrenal function & stress, check out these related posts:

Digestion & Intestinal Barrier

Digestive disorders are among the most common (but not normal) ailments in the population today. In fact, visits for digestive complaints rank among the top 3 reasons for doctors visits every year. Proton pump inhibitors are are among the most widely-selling drugs in the world with millions prescribed and taken each year. Chances are most people who are reading this are or have suffered from some form of digestive disorder either currently or in the recent past. Would you like to keep running to the doc and/or taking more meds, or would you prefer to get to the root cause of what’s ailing you and heal your gut once and for all?

With FDN, we again seek those hidden stressors that may be causing digestive dysfunction and symptoms. Your digestive system is a complex system that impacts your health in a wide variety of ways – here are a few:

  • 90% of serotonin, the neurotransmitter that helps regulate mood and appetite, is formed in the gut
  • 75% of melatonin, the hormone that enables us to sleep well, is produced in the gut
  • Secretory IgA (SIgA) the most abundant immunoglobulin in the body is produced in the gut
  • Your intestinal mucosal barrier is like your second skin – it protects you from foreign invaders and infections. If damaged, it can open
    the door for food particles and microorganisms (parasite, fungi, bacteria) to seep through into other organs and general circulation causing an autoimmune response
  • The digestive system breaks down food to extract nutrients and absorb them into the body for health
  • Inflammation in the gut leads to inflammation in the brain due to the Gut-Brain Axis. An inflamed brain can lead to neurological disorders such as Parkinson’s, Dementia, Autism, & ADHD.

FDN identifies internal stressors, current gut function, and provides potential healing protocols for eliminating invaders, rebuilding the gut, and optimizing digestive health.

For more on digestive function & health, check out these related posts:


Have you ever wondered why you’re more likely to get sick when you’re stressed out? Have you ever gotten sick because you got “run down?” Getting run down from a stressful lifestyle is the very situation that causes the systems we’ve discussed so far to become burdened, resulting in your body becoming more prone to infection and illness.

The immune system can be negatively impacted in the gut through stressors that impact immunoglobulins that, under normal circumstances, protect us from infection/infestation. SIgA can also be suppressed by an elevated Cortisol:DHEA ratio, with various stressors playing a role.

Again, by eliminating hidden, underlying stressors and working with you towards lifestyle change that helps you to manage known stressors, FDN delivers a “1-2 punch” to strengthen your immune system and develop a healthy, resilient body.


Poor breakdown, digestion, and elimination of metabolic byproducts leads to metabolically undesirable compounds that result in free radical damage and liver conjugation (sluggishness). With FDN, we assess metabolic function at this level and can determine possible poor intestinal bacterial digestion and lowered antioxidant:prooxidant ratio (oxidative stress).

Vacuum Bags & Rotten Apples

Think of your liver as a vacuum bag. If the bag gets clogged and full of dirt, dust and foreign particles, it will stop working well and spill out its contents– the same thing can happen with your liver. When your liver is “clogged” it doesn’t function properly and can’t perform its job. The contents, such as urinary bile acid sulfates, spill out and indicate an issue with your body’s ability to detoxify.

Have you ever taken a bite out of an apple, walked away and came back later only to find that the inside of the apple has turned brown? That brown color is from the contents of the apple becoming oxidized. The same oxidation that you see with the browning of the apple can occur on a cellular level in the body, causing damage to cell structures, organs, and entire systems. Oxidative stress damages cells and is thought to be a primary trigger in many degenerative diseases.

With Functional Diagnostic Nutrition, we can determine your level of metabolic stress and detoxification capacity to support the liver and reduce free radical damage/oxidative stress.

Your Program

Functional Diagnostic Nutrition provides the answers to your health & weight loss questions by taking the guesswork out of the equation and replacing it with quantifiable, tangible feedback that you can actually see. FDN is a unique program designed to get to the root cause of your health & weight loss challenges.

Functional Diagnostic Nutrition is your commitment to transforming your life and taking responsibility for your health. Stop spinning your wheels and banging your head against the wall – get real life solutions and lasting results today with Functional Diagnostic Nutrition.

YOUR program includes:

  • Coaching sessions with Functional Diagnostic Nutrition practitioner and Certified Lifestyle Coach Jason Bosley-Smith
  • Thorough Interpretation of Lab Results
  • Customized Nutrition Program
  • Detoxification Protocol
  • Supplement Recommendations
  • Email coaching
  • Strategies for improving your lifestyle
  • Accountability

NOTE: Lab fees and cost of supplements are not included in consulting rates. They are paid directly to the laboratory.

Sick and tired of being sick and tired? Get to the source - complete the form below and we will contact you to empower you in achieving the health you truly deserve.

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