Table 1 Inclusion/Exclusion Criteria

Randomised control trials with the intervention of any weight measurement, self-recorded or recorded by any health professional

Studies published in languages other than English

Studies that are not randomised control trials

Studies that included pregnant women with a singleton pregnancy, of any age, weight, body mass index, without date limits

Studies in animals

Multiple pregnancies

Studies that used more than one episode of weight measurement during pregnancy

Poor methodological quality studies

Neutral or good methodological quality studies