Document Detail

Fish consumption in pregnancy and fetal risks of methylmercury toxicity.
MedLine Citation:
PMID:  20944040     Owner:  NLM     Status:  MEDLINE    
QUESTION: Because I practise in a rural area with a large number of lakes, I have patients planning pregnancy who consume relatively large amounts of fish harvested by their families. What should be my advice to them?
ANSWER: A recent Motherisk study has shown that fairly commonly these women's mercury levels exceed the threshold level for cognitive effects. Women should not consume excessive amounts of seafood in pregnancy (ie, no more than 2 weekly average size servings). Hair mercury level above 0.3 μg/g indicates a potentially excessive body burden.
Gideon Koren; John R Bend
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian family physician Médecin de famille canadien     Volume:  56     ISSN:  1715-5258     ISO Abbreviation:  Can Fam Physician     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-10-14     Completed Date:  2012-04-05     Revised Date:  2013-07-03    
Medline Journal Info:
Nlm Unique ID:  0120300     Medline TA:  Can Fam Physician     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  1001-2     Citation Subset:  IM    
Motherisk Program, Hospital for Sick Children in Toronto, Ont.
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MeSH Terms
Family Planning Services / standards
Fetal Development / drug effects*,  physiology
Fishes* / metabolism
Food Habits*
Hair / chemistry
Methylmercury Compounds / poisoning*
Pregnancy Complications / prevention & control*
Rural Health
Seafood / adverse effects*
Reg. No./Substance:
0/Methylmercury Compounds

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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