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Pre-pregnancy overweight or obesity and excessive gestational weight gain are significant, modifiable risk factors that increase the incidence of GDM.

Maintain a healthy weight before pregnancy. If overweight, aim for gradual weight loss before conceiving. During pregnancy, monitor weight gain closely to ensure it stays within recommended guidelines for your pre-pregnancy BMI.

StrongSupportsVERY_HIGH confidence
Pre-pregnancy overweight or obesity is an established risk factor for GDM, which can significantly increase the incidence of GDM... High rates of gestational weight gain, particular during early pregnancy, may increase the risk of GDM.
Juan Juan et al. · International Journal of Environmental Research and Public Health · 2020

Why this rating

Consistent findings across multiple cohort studies and meta-analyses.

Source

Prevalence, Prevention, and Lifestyle Intervention of Gestational Diabetes Mellitus in China

Juan Juan et al. · International Journal of Environmental Research and Public Health · 2020

DOI 10.3390/ijerph17249517

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DOI resolved against Crossref · corpus check 2026-06-10

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