When the DNA strand copies itself when a cell divides, the methyl groups on the parent DNA strand are copied onto the new daughter DNA strand. There is now a growing body of evidence in animals, plants, and humans that epigenetic effects induced by many types of stimuli and interventions including nutrition, endocrine disrupting chemicals, maternal care, and maternal stress can be inherited transgenerationally and affect subsequent generations. (18 Catherine Gallou-Kabani et al., Nutri-epigenomics: Lifelong Remodelling of our Epigenomes by Nutritional and Metabolic Factors and Beyond, 45 CLIN. CHEM. LAB. MED. 321, 323 (2007).

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