Ancestors' exposure to DDT may contribute to obesity, study says

October 24, 2013 1:28 AM

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Ancestors' exposure to DDT may contribute to obesity, study says

Exposure to the pesticide DDT could be playing a role in high rates of obesity three generations later, a new study says.

Scientists injected pregnant rats with DDT and found no change in their levels of obesity or their offspring. But by the third generation, more than half of the rats (think of them as the great-grandchildren) showed dramatically higher levels of fat and weight gain, even though they were never expos...

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