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Your Diet Affects Your Grandchildren's DNA, Scientists Say

By: Christopher Wanjek, LiveScience Bad Medicine Columnist

Published: 07/27/2012 10:00 AM EDT on LiveScience

You are what you eat, the saying goes. And, according to two new genetic studies, you are what your mother, father, grandparents and great-grandparents ate, too.

Diet, be it poor or healthy, can so alter the nature of one's DNA that those changes can be passed on to the progeny. While this much has been speculated for years, researchers in two independent studies have found ways in which this likely is happening.

The findings, which involve epigenetics, may help explain the increased genetic risk that children face compared to their parents for diseases such as obesity and diabetes.

The punch line is that your poor dietary habits may be dooming your progeny, despite how healthy they will try to eat. [10 Worst Hereditary Conditions]

Epigenetics

Epigenetics refers to changes in gene expression from outside forces. Different from a mutation, epigenetic changes lie not in the DNA itself but rather in its surroundings -- the enzymes and other chemicals that orchestrate how a DNA molecule unwinds its various sections to make proteins or even new cells.

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Your diet affects your grandchildren's DNA, studies say

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Home » Diet » Your diet affects your grandchildren's DNA, studies say