Dr. Joseph Mercola - Take Control of Your Health High Ultraprocessed Food Intake Linked to Lower DNA Methylation
Jan 6, 2026
Ultraprocessed foods are revealed to disrupt DNA methylation, impacting health before symptoms emerge. A study on women showed significant changes in key genes linked to fat storage and insulin sensitivity, even in those with normal metabolic markers. In children, similar effects were documented, affecting thyroid function and stress response. To combat this, experts recommend transitioning to whole foods, emphasizing protein and fiber, and carefully reading ingredient labels. Small dietary swaps and a supportive environment are essential for healthier choices.
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Specific Genes Linked To Stress And Repair Shift
- ATF7 methylation rose with higher ultraprocessed consumption, implicating stress and inflammatory signaling.
- NHEJ1 methylation also increased, potentially hindering DNA repair capacity.
High UPF Intake Is Common Worldwide
- Ultraprocessed energy share varies widely by country, often exceeding half of daily calories.
- Methylation differences appeared even in populations with lower ultraprocessed shares.
Methylation Changes Occur Before Clinical Signs
- Methylation changes accumulate silently before metabolic tests or weight changes show problems.
- Waiting for blood sugar or cholesterol shifts means intervening too late.