The epigenome sits atop our DNA, adding chemical tags that dictate gene expression. Dr. Schuster explains that nutrition, exercise, and stress can modify these tags, influencing health and disease risk.
Beyond the Genetic Code
According to Dr. Schuster, the epigenome consists of markers—often called tags—added to DNA that can be inherited. While 90‑95% of our DNA and RNA remain mysterious, the epigenetic layer determines how those genes are read and expressed.
- Tags such as methyl groups attach to the double helix
- Histones and nucleosomes unwind DNA for transcription
- Epigenetic changes can be passed to the next generation
From Food to Gene Expression
Eating poorly or exposing the body to chronic stress creates a hostile cellular environment, leading to faulty DNA‑to‑RNA‑to‑protein translation. Dr. Schuster notes that when cells lack ATP, misfolded proteins accumulate, contributing to neurodegenerative disease.
- Proper cellular pH and energy levels support correct protein folding
- Mitochondrial health provides the ATP needed for cleanup
- Misfolded proteins can travel from gut to brain via the vagus nerve
Why Optimizing the Epigenome Matters
When the epigenome is in a healthy state, DNA is read efficiently, reducing the burden on cellular cleanup systems. Dr. Schuster highlights that this translates into lower chronic inflammation, longer telomeres, and potentially extended healthspan.
- Reduced expression of pro‑inflammatory cytokines (IL‑1, IL‑6, TNF‑α)
- Preservation of telomere length for better cellular replication
- Improved mitochondrial function and energy availability
Risks of Unchecked Manipulation
Dr. Schuster warns that intervening directly with DNA or RNA technologies is hazardous because we lack understanding of most of the genome. Randomly altering epigenetic tags could be inherited and cause unforeseen health issues.
- 90‑95% of DNA function remains unknown
- Altering epigenetic marks without data may affect offspring
- Current science recommends lifestyle, not gene editing, for safety
“If you eat food your body doesn’t like, it changes the epigenome and rewrites how your genes are read.”— Dr. Jason Schuster
The full nutrition & epigenetics coursework
Dr. Schuster's accredited courses on epigenetics, methylation, and nutrition — the mechanisms on this page, in full.