The epigenome is the system that determines how our DNA is expressed, and it responds to the cellular environment we create. By providing the right vitamins, minerals, and nutrients—and avoiding harmful substances—we can dramatically shift gene expression toward better health.
Epigenome Basics
The DNA sequence itself is largely immutable, but the way those genes are turned on or off depends on the environment inside each cell. This regulatory layer—known as epigenetics—controls which proteins are made and therefore how the body functions.
- DNA provides the blueprint; epigenetics controls the reading of that blueprint.
- Approximately 85‑90% of DNA was once labeled "junk" but is essential for life.
- Only about 10% of DNA codes for proteins directly.
How Nutrition Shapes Genes
When we supply the nucleus with optimal concentrations of vitamins, minerals, and other nutrients, we create a healthy cellular environment that promotes favorable gene expression. Conversely, toxins and poor diet degrade that environment, leading to maladaptive expression.
- Adequate micronutrients support proper epigenetic marks.
- Avoiding processed foods and environmental toxins maintains a clean epigenetic slate.
- Even modest, consistent exercise can reinforce positive gene expression.
Why It Matters
Targeting the epigenome through diet and supplements can produce outsized health gains, from weight loss to improved longevity. Dr. Schuster notes that simple nutritional changes have yielded “insanely huge” positive shifts in many people's health.
- Improved metabolic health and weight management (79.4% of U.S. adults are overweight or obese).
- Enhanced resilience against chronic disease.
- Potentially higher life expectancy as gene expression becomes more health‑focused.
Practical Considerations
Because mainstream insurance does not cover epigenetic‑focused nutrition and supplementation, individuals must often pay out‑of‑pocket. Dr. Schuster emphasizes that while this can be an added cost, the health returns far outweigh the price.
- Expect to fund supplements and testing yourself; costs are modest, not exorbitant.
- Seek clinicians who understand functional, epigenetic‑based care.
- Combine nutrition with minimal regular movement for maximal effect.
“If we could not affect our epigenome, we could not change our health in the dramatic way we can.”— Dr. Jason Schuster
Dr. Schuster's short takes on this topic — tap to play.
The full nutrition & epigenetics coursework
Dr. Schuster's accredited courses on epigenetics, methylation, and nutrition — the mechanisms on this page, in full.