A new study suggests there are no beneficial effects and connection between an expecting mother gaining weight and her child’s bone mass. It applies to both normal and overweight women before pregnancy, says Teresa Monjardino, lead author from the Universidade do Porto in Portugal.

Monjardino adds that before this recent study, the scientific belief indicated that weight gain from the mother during her pregnancy would have a beneficial effect on children’s bone mass.

After some research, it was observed that in normal and slightly underweight women, weight gain helped the child’s bone mass increase by a bit, but in overweight women, it showed no difference at all. ‘Our study results corroborate that there is no benefit in gaining weight above the US Institute of Medicine recommendations for pregnancy weight gain for children’s bone mass, in both normal and overweight women before pregnancy,’ Monjardino adds.