04/16/2026
Every time you eat, you're sending signals to your genes.
Certain food compounds don't just nourish the body. They interact with the genetic pathways that regulate inflammation, oxidative stress, vascular function, and lipid metabolism. Whether those pathways work in your favor depends, in part, on what you eat.
Some of the most compelling examples:
→ Sulforaphane, generated when you eat cruciferous vegetables, activates Nrf2 — a transcription factor that switches on the body's antioxidant defense genes. People with certain NRF2 variants have lower baseline activity in this pathway and may respond more meaningfully to these foods.
→ Curcumin downregulates NF-κB, a transcription factor that drives inflammatory gene expression. Chronic NF-κB activation is a contributing factor in arterial plaque formation and endothelial dysfunction.
→ Omega-3 fatty acids activate PPAR-alpha, a nuclear receptor that turns on genes involved in fatty acid oxidation and turns down inflammatory programs. Variants in the PPARA gene help explain why triglyceride responses to omega-3s differ so significantly between individuals.
→ Resveratrol activates SIRT1, a sirtuin that regulates lipid metabolism, endothelial function, and vascular inflammation.
→ EGCG from green tea inhibits DNA methyltransferases — enzymes involved in gene silencing — with downstream effects on endothelial gene expression.
This is one reason why two people can eat similarly and have very different cardiovascular outcomes.
You don't need a genetic test to benefit from this information, although testing can provide more targeted guidance. But understanding that food communicates with your genes — not just fuels your body — changes the conversation entirely.
Head over to Substack for the full article: https://ow.ly/Pcxi50YKsAB
