Vitamin D deficiency during the first trimester of pregnancy has consequences for newborns. One study shows that children born to mothers who are deficient in this period are overweight at six years of age compared to other children.
80% of French adults have a vitamin D deficiency according to the National Study Nutrition Health published in 2012. The lack of this vitamin can cause health problems such as heart disease, diabetes or cancer. If the intake is insufficient during pregnancy, it can also affect the newborn.
US researchers have conducted a study on the link between vitamin D deficiency in pregnancy and the risk of obesity. Their results indicate that six-year-olds, whose mothers had vitamin D deficiency during their first trimester of pregnancy, were more pregnant than others. The study was conducted by the Keck School of Medicine at the University of Southern California and published by Pediatric Obesity.
1.25 cm more waist circumference
For this research, scientists looked at the case of 532 mother-child pairs in Greece. The vitamin D level was measured during the first trimester of pregnancy and the weight of the child was recorded at 4 and 6 years. Sixty-six percent of mothers had vitamin D deficiency. By the age of six, children born to these mothers had a larger waist circumference of about 1.25 centimeters and 2% more body fat, compared to to the children of mothers who are not deficient.
"This rise certainly does not seem like much, but we're not talking about adults who have 30% body fat, even 1.25 cm in waist circumference is a big difference, especially when you project this excess of fat over a lifetime, "warns Vaia Lida Chatzi, professor of preventive medicine at the Keck School of Medicine and lead author of this research.
An increase in deficiencies in pregnant women
During the last twenty years, the number of pregnant women deficient in vitamin D has increased according to Vaia Lida Chatzi. If in summer, the sun is a very good source of vitamin D, in winter, it is necessary to compensate by food. Oily fish such as salmon or tuna are rich. It is also possible to take a treatment based on food supplements.