All diet and/or exercise interventions leads to lower excessive weight gain compared with standard/other care (high certainty).
The review found no eligible studies for this question.
All diet and/or exercise interventions probably leads to higher low weight gain compared with standard/other care (moderate certainty).
All diet and/or exercise interventions showed no clear difference in preterm birth compared with standard/other care (moderate certainty).
All diet and/or exercise interventions showed no clear difference in pre‐eclampsia compared with standard/other care (high certainty).
All diet and/or exercise interventions showed no clear difference in caesarean delivery compared with standard/other care (high certainty).
All diet and/or exercise interventions showed no clear difference in macrosomia Infant birthweight > 4000 g compared with standard/other care (high certainty).