When planning a pregnancy, women should pay attention to diet and do not do excessive diet. The new study shows that women who are pregnant while on a diet can make babies become obese (overweight) and at risk of developing diabetes later in life.

Scientists at the University of Manchester found that women who become pregnant while on a diet can cause DNA changes in the fetal brain in the womb.

The study was conducted on sheep, but scientists confirmed that these findings could apply to humans. This finding could also explain why twins are more likely to develop type 2 diabetes in adulthood.

The study looked at twin pregnancies in sheep as well as domernal pregnancy that received less food during concession (fertilization). The researchers then looked at the unborn lamb's brain tissue to see if there was any change in the structure of DNA.

"We found that unmarried twin limbs had a change in the structure of DNA in the brain region that regulates food and glucose intake that results in an increased chance of diabetes in adulthood," explained study leader Anne White, as reported by Dailymail on Wednesday (4/4) / 2012).

According to Anne, these findings suggest the reason why twins are more likely to have diabetes. It also showed that mothers who did not get enough food during conception may have children who grew up with an increased risk of diabetes.

The researchers believe that these findings are relevant to humans, because researchers reveal a non-genetic or 'epigenetic' way, in which DNA offspring can be altered.

"Our study is important because it shows that factors in the brain can be altered by a non-hereditary mechanism and this results in changes in the body, which can make people fat," Anne added.

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This is emphasized because dieting in young women is very common and can occur in women who may not know that pregnant.

The results of this study have been published in the Journal of the Federation of American Societies for Experimental Biology.