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Published on: March 13, 2014
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Eating fish for two
1Northern Ireland Centre for Food and Health (NICHE), University of Ulster, Coleraine, Northern Ireland, UK.
Nutrition Bulletin
|August 19, 2014
Summary
Maternal fish consumption during pregnancy is beneficial, offering nutrients like LC-PUFAs that may offset risks from methylmercury (MeHg) exposure. Studies show no adverse effects on fetal development from high fish intake, suggesting benefits outweigh potential MeHg risks.
Area of Science:
- Nutrition Science
- Environmental Health
- Developmental Pediatrics
Background:
- Fish is a vital global food source, providing essential nutrients and protein.
- Methylmercury (MeHg) in fish is a neurodevelopmental toxin, raising concerns for pregnant women.
- Current pregnancy fish consumption guidelines often emphasize risks over benefits.
Purpose of the Study:
- To evaluate the effects of maternal fish consumption and methylmercury exposure on fetal development.
- To review current guidance and policy on fish intake during pregnancy.
- To compare findings from the Faroe Islands and Seychelles Child Development Studies.
Main Methods:
- Review of existing epidemiological data, including studies from the Faroe Islands and the Seychelles.
- Analysis of methylmercury exposure levels and developmental outcomes in relation to fish consumption.
- Expert consultation on the balance of risks and benefits of fish consumption during pregnancy.
Main Results:
- Seychelles Child Development Studies found no adverse developmental effects from high maternal fish consumption (9-12 meals/week) and methylmercury exposure.
- Data suggest nutrients like LC-PUFAs in fish may mitigate or modify potential methylmercury impacts.
- Faroe Islands studies, with methylmercury exposure from whale meat, reported minor adverse effects on child development.
Conclusions:
- The health benefits of fish consumption during pregnancy, particularly from LC-PUFAs, likely outweigh methylmercury risks.
- Improved education and guidance are needed to promote beneficial fish consumption for optimal fetal development.
- Current policies should be re-evaluated to better reflect the positive nutritional contributions of fish during pregnancy.
