DNA methylation adds a small chemical group (CH₃) to cytosine bases in your DNA. This silences genes. As you age, methylation patterns change - some genes that should be silent turn on, and vice versa.
CH₃methyl groups control gene expression
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Methylation lifestyle factors
Swipe left for factors that IMPROVE methylation patterns, right for those that WORSEN them.
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Fact
The methylation cycle needs B vitamins + choline
Methyl groups don't appear from nowhere. The body's methylation engine runs on methionine → SAMe (the universal methyl donor) → homocysteine → back to methionine. The cycle requires folate (B9), B12, B6, riboflavin (B2), choline, and betaine. Deficiency in any of these - common with aging - disrupts the entire methylome. Eggs (choline), leafy greens (folate), and fish (B12) are the cheapest insurance.
5 nutrientsthe methylation-cycle dependencies
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How fast can methylation change?
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True or false
True or False
Identical methylation patterns mean identical biological aging.
Two people with the same methylation patterns at clock sites will biologically age at exactly the same rate
Methylation is one major axis of epigenetic aging, but not the only one. Histone modifications, chromatin organisation, and non-coding RNAs also drive aging. Two people can match on a methylation clock but differ on rate-of-aging measures like DunedinPACE because the underlying biology is multi-dimensional.
Takeaway
Key Takeaway
Methylation is the language of epigenetic aging. Folate-rich foods, exercise, and good sleep maintain healthy methylation. Alcohol, smoking, and stress accelerate epigenetic aging.
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