Diet induced epigenetic changes and their implications for health

Area of Science:

• Nutritional Epigenetics
• Chronic Disease Etiology
• Gene-Environment Interactions

Background:

• Dietary exposures have long-term health consequences, prompting investigation into underlying mechanisms.
• Epigenetic mechanisms, including DNA methylation, histone modifications, and microRNAs, are increasingly recognized as mediators of nutrition's effects on chronic disease risk.

Purpose of the Study:

• To review the evidence linking dietary factors to modifications in epigenetic marks.
• To explore the potential of epigenetics in mediating diet-health relationships and disease development.

Main Methods:

• Literature review summarizing current research on diet-epigenome interactions.
• Discussion of specific dietary components (micronutrients, genistein, polyphenols) and their epigenetic effects.

Main Results:

• Numerous dietary factors have been shown to modify epigenetic marks.
• While some mechanisms are plausible (e.g., methyl donors and DNA methylation), many diet-epigenome-health relationships require further elucidation.
• The lability of specific epigenomic marks in response to diet is not well understood.

Conclusions:

• Epigenetic marks are responsive to dietary factors, highlighting their role in long-term health.
• Further research is needed to uncover the precise mechanisms of diet-epigenome interactions.
• Epigenetic marks show potential as biomarkers for health interventions.