Besides genetic factors, mother's weight can directly influence a child's body mass index (BMI) in adolescence, finds a new study.
The study found that adolescents whose mothers do not stay physically active are likely to become overweight.
On the other hand, their low weight can also affect them.
"Parents have a major impact on their children's health and lifestyle. Behaviours that lead to obesity are easily transferred from parent to child," said Marit Naess, doctoral student at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway.
"If mom drops two to six kilos, this can be linked to lower BMI in the kids," added Kirsti Kvaloy, researcher from the varsity.