Eating less, or dieting, during early pregnancy can lead to impaired foetal brain development researchers from The University of Texas Health Science Centre reported.
Hundreds of genes involved
In teenage pregnancy, the developing foetus is deprived of nutrients by the needs of the growing mother;
In pregnancies late in reproductive life, a woman's arteries are stiffer and the blood supply to the uterus decreases, inevitably affecting nutrient delivery to the fetus;
Diseases such as pre-eclampsia or high blood pressure in pregnancy can lead to decreased function of the placenta with decreased delivery of nutrients to the foetus.