Dr. Jason Schuster explains that what we eat, the supplements we take, and how we move directly influence the epigenome—the master switch that determines how our genes are expressed. By targeting key longevity pathways, we can improve healthspan and potentially extend lifespan.
How Lifestyle Controls Gene Expression
In the video Dr. Schuster describes the epigenome as the “most elevated level” of genetic regulation – the system that decides which of our identical genes are turned on or off. Because the DNA sequence is largely the same in everyone, health outcomes depend on how that information is read, which is molded by diet, exercise, and supplementation.
- Processed foods and sedentary habits disrupt epigenomic signaling.
- Whole‑food nutrition, regular movement, and targeted supplements support epigenetic stability.
Four Genes That Drive Healthspan
Dr. Schuster highlights four heavily studied longevity pathways: sirtuins, mTOR, AMPK, and telomerase (T‑enzyme). Each pathway produces proteins that influence metabolism, cellular repair, and the ability of cells to keep dividing.
- Sirtuins (SIRTs) – regulate metabolism and stress resistance.
- mTOR – balances nutrient sensing with growth and repair processes.
- AMPK – acts as an energy sensor, fostering mitochondrial health.
- Telomerase (TEL) – maintains telomere length, supporting cellular longevity.
The 12 Signs of Chronic Aging
According to Dr. Schuster, there are twelve commonly referenced hallmarks of chronic aging, many of which are driven by epigenomic dysregulation. Addressing these factors with nutrition and lifestyle can create synergistic benefits across the system.
- Genomic instability
- Telomere shortening or dysfunction
- Epigenetic alterations
- Loss of proteostasis
- Mitochondrial energy deficiency (ATP loss)
- Altered intracellular communication
- Chronic sympathetic hyperactivity
- Mineral deficiency
- Stem‑cell exhaustion
- Deregulated nutrient sensing
- Disabled macroautophagy
- Chronic inflammation
Targeting the Epigenome
In his two‑part class, Dr. Schuster reviews specific vitamin and mineral deficiencies that impair epigenomic function—especially vitamins D, E, C, A, and zinc. He also explains how supplementing these nutrients can help correct many of the twelve aging hallmarks, notably chronic inflammation and mitochondrial energy production.
- Maintain adequate Vitamin D, E, C, A, and zinc levels.
- Use anti‑inflammatory foods and supplements to curb chronic inflammation.
- Support ATP generation with nutrients that aid mitochondrial function.
“It’s impossible to be optimally healthy without understanding how nutrition, exercise, and supplements affect your epigenome.”— Dr. Jason Schuster
Dr. Schuster's short takes on this topic — tap to play.
The full nutrition coursework
Dr. Schuster's board-certified, accredited online nutrition courses — the research, the dosing, and the clinical reasoning in full.