While too much alcohol is linked to high blood pressure, liver problems and infertility, resveratrol has been variously linked to fighting cancer, obesity, diabetes, and even the signs of old age.

Obese women face increased risk of infertility and problems during pregnancy, including hypertension, gestational diabetes and thromboembolic events and are more likely to need a cesarean section.

Previous studies have highlighted the growing infertility rates for older women and the greater risk of them developing diabetes and pre-eclampsia.