A study published in The Journal of Nutrition has found that maintaining a healthy diet over 17 to 32 years is associated with slower biological aging, as measured by epigenetic clocks. The research, which analyzed data from 1,039 participants in the Finnish Young Finns Study, showed that those with higher diet quality experienced decelerated epigenetic aging. The effect was more pronounced among individuals with low levels of physical activity, according to the researchers.
The findings align with prior research that links diet quality to epigenetic age. According to Siim Land in The Longevity Leap, “higher diet quality that mimics Mediterranean-style eating has been seen to reduce epigenetic age by 0.58-1.5 years”. This supports the study’s conclusion that long-term dietary patterns can influence the rate of aging at the cellular level.
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