According to Dr. Sam Shay, functional genetics isn't genealogy or disease-gene testing. It's what Shay calls "terrain" genetics — identifying the upstream drivers of disease before they cascade into diagnosable conditions.

As Shay shared, "Genetics testing is the cheapest, most high-value test anyone can do because done once, you have the results for life."

Understanding Your Genetic Terrain

Shay's work and research has identified seven major drivers of disease. These include inflammation, free radical scavenging, and liver detoxification as the highest priorities.

In essence, the way people can win at genetics is to prioritize the drivers, prioritize the genes within the drivers, then prioritize the lifestyle recommendations. Eating For Your Unique Blueprint

A key discovery: the Amy1 gene (and how much of it) determines how well you break down carbs. This specific genetic marker reveals whether you should follow a keto, paleo, or high-carb diet.

For example, individuals with less of the Amy1 gene may thrive on low-carb protocols to maintain energy. Those with higher amounts may actually require higher carb intake to avoid health crashes

A complete dietary genetic picture also covers: caffeine metabolism, histamine intolerance, gluten/lactose sensitivity, and sugar-craving variants

Training Based On Fiber Type

How should you exercise for the best results? Exercise recommendations should be designed to your genetic fiber type and recovery needs. Some people are naturally suited for power and fast-twitch movements, while others excel at endurance.

Genetic markers can also reveal your collagen strength and inflammatory response to physical stress. Ignoring these markers can lead to chronic disease or injury despite regular exercise.

Functional Testing and Barbed Wire

Functional labs provide a snapshot of your current health to complement your genetic structure. A concept called metabolic barbed wire can block your progress even if you follow genetic advice.

This occurs when issues like gut infections or toxins prevent your body from functioning optimally. Clearing these obstacles allows you to return to your ideal genetic terrain.

In this podcast, you will discover:

The difference between functional genetics and standard disease-gene testing.
Why inflammation and free radical scavenging are the top priorities for health.
How your Amy1 gene determines your ideal carbohydrate intake.
The role of fiber type and collagen genes in preventing exercise injuries.
Why vitamin D receptors matter more than your actual blood levels.
The concept of metabolic barbed wire and how it blocks health progress.
Which functional labs provide the most actionable insights for your body.

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