If you’re a soon-to-be mother, here is some important news regarding your weight and your future child’s health. A new study published in the journal Paediatric and Perinatal Epidemiology shows that the mother’s weight before pregnancy is linked to the development of certain allergic diseases among their children. Canadian researchers analyzed the medical records of nearly 250,000 births to identify each mother’s weight and weight gain before and during pregnancy. They also followed the children until age 7. They found that children born to mothers who were obese before pregnancy were more likely to develop asthma than their peers. On the other hand, there appeared to be no relationship between weight gain during pregnancy and the development of childhood allergic disease.