Study Title
The Association of a Vegan Diet during Pregnancy with Maternal and Child Outcomes: A Systematic Review
Principal Investigator
Deidre Meulenbroeks, Eline Otten, Sophie Smeets, Luuk Groeneveld, Daisy Jonkers, Simone Eussen, Hubertina Scheepers, Jessica Gubbels
Affiliation
Maastricht University Medical Centre, Maastricht University, The Netherlands
Start Date
Not specified
End Date
Not specified
Study Objective
To investigate the nutritional intake among pregnant women following a vegan diet and its impact on maternal and fetal outcomes.
Short Abstract
This systematic review examines six studies on the effects of a vegan diet during pregnancy on maternal and fetal health. The review found that vegan mothers had lower intake of protein and micronutrients like vitamin B12, vitamin D, calcium, and iodine. Vegan mothers were found to have significantly lower pregnancy weight gain and a higher incidence of lower birth weight in their children. However, vitamin B12 supplementation was sufficient to maintain adequate maternal and fetal levels. The review concludes that more studies with larger sample sizes are needed for definitive conclusions.
Study Design
Systematic review
Population
Pregnant women on a vegan diet compared to omnivorous controls
Sample Size
Six studies included, ranging from 18 to 234 participants in the vegan group
Inclusion Criteria
Studies examining the effects of a vegan diet in pregnancy on maternal and fetal outcomes
Exclusion Criteria
Studies on non-pregnant participants, vegetarians, or diets other than vegan
Intervention/Exposure
Vegan diet during pregnancy
Outcome Measures
Maternal and fetal health outcomes, including nutrient intake, weight gain, birth weight, vitamin B12 levels, and pregnancy complications
Funding Source
No external funding reported
Collaborating Institutions
Maastricht University, Netherlands
Ethics Approval
Not specified (systematic review)
Publication Status
Published in Nutrients, September 2024
Keywords
Vegan diet, pregnancy, maternal health, fetal outcomes, birth weight, nutritional intake
Data Collection Methods
Systematic review of studies retrieved from PubMed, Embase, and Cochrane databases
Primary Data Availability
Not applicable
Contact Information
Deidre Meulenbroeks (