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Obese dads leave kids with fat chance

An obese father increases the risk of his children and grandchildren becoming obese, even if they follow a healthy diet. That’s the implication of a series of mouse studies conducted at the University of Adelaide.

Photo: A mouse with diet induced obesity and its control counterpart. Credit: Robinson Research Institute

The researchers found that a father’s high-fat diet could change the molecular make-up of his sperm, leading to obesity and diabetes-like symptoms in two generations of offspring.

“With obese fathers, changes in the sperm’s microRNA molecules are linked with programming the embryo for obesity or metabolic disease later in life,” says Tod Fullston, the study’s lead author and an NHMRC Peter Doherty Fellow with the University of Adelaide’s Robinson Research Institute.

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