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Rana Chehab, PhD, MPH, RD

Rana  Chehab, PhD, MPH, RD

Rana Chehab, PhD, MPH, RD, is a staff scientist at the Kaiser Permanente Division of Research. Rana earned her BS in Nutrition and Dietetics and her Masters in Public Health with an emphasis on Health Promotion and Community Health from the American University of Beirut in Lebanon. She then pursued her PhD in Nutrition Science with an emphasis on Population Nutrition and Health Promotion at Purdue University in Indiana. She is also a Registered Dietitian in the US and strives to utilize her clinical and research skills to improve the health and wellbeing of women, children, and future generations.

Her research interests revolve around maternal and child health and health across the life course with a special interest in the first 1,000 days of life and developmental origins of health and disease. She hopes to translate findings from her research to improve health care quality and outcomes for optimal intergenerational health.

At DOR, she is working on projects related to risk factors of glycemic control trajectories and their impact on perinatal outcomes among women with gestational diabetes mellitus. She will also examine microbiota-metabolites-host interactions in association with pregnancy complications and fetal growth outcomes using machine learning algorithms to inform upstream dietary factors and potential preventive targets.

Current Positions

  • Staff scientist

Section Affiliations

Primary Research Interests

  • Health across the life course
  • Gestational diabetes mellitus
  • Fetal and child growth trajectories
  • Community participatory research
  • Healthcare delivery and policy


Associations between Glycemic Control Trajectories among Individuals with Gestational Diabetes and Obesity Risk and Growth Trajectories in the Offspring

The study will examine the association between glycemic control trajectories among individuals with gestational diabetes (GDM) included in the GDM registry and the risk of childhood obesity and growth trajectories in the offspring. Glycemic control trajectories provide unique insights into glycemic control patterns that account for heterogeneity between individuals with GDM and throughout the pregnancy period between GDM diagnosis and delivery.

Investigator: Chehab, Rana

Funder: KP National Office of Community Health


In utero metabolomic signatures of refined grains intake and risk of gestational diabetes: A metabolome-wide association study

Authors: Chehab, Rana F; Ferrara, Assiamira; Zheng, Siwen; Barupal, Dinesh K; Ngo, Amanda L; Chen, Liwei; Fiehn, Oliver; Zhu, Yeyi

Am J Clin Nutr. 2023 Apr;117(4):731-740. Epub 2023-02-11.

PubMed abstract

Glycemic Control Trajectories and Risk of Perinatal Complications Among Individuals With Gestational Diabetes

Authors: Chehab, Rana F; Ferrara, Assiamira; Greenberg, Mara B; Ngo, Amanda L; Feng, Juanran; Zhu, Yeyi

JAMA Netw Open. 2022 Sep 01;5(9):e2233955. Epub 2022-09-01.

PubMed abstract

Longitudinal Associations of Plasma Phospholipid Fatty Acids in Pregnancy with Neonatal Anthropometry: Results from the NICHD Fetal Growth Studies-Singleton Cohort

Authors: Wang E; Zhu Y; Chehab RF; Wu J; Hinkle SN; Weir NL; Bremer AA; Yang J; Chen Z; Tsai MY; Zhang C

Nutrients. 2022 Jan 29;14(3). Epub 2022-01-29.

PubMed abstract

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