Mercury from Fish Does Not Reduce Children’s IQs
2006
Mercury from Fish Does Not Reduce Children’s IQs
publication
Evidence: high
Author Information
Author(s): Joel Schwartz
Primary Institution: American Enterprise Institute
Hypothesis
Does prenatal methylmercury exposure reduce children's IQs?
Conclusion
The evidence indicates that methylmercury exposure, even at levels higher than those typically found in the U.S., does not reduce children's IQ.
Supporting Evidence
- Previous studies in the Seychelles and New Zealand found no IQ reductions at any methylmercury exposure.
- Trasande et al. overestimated the percentage of newborns exposed to harmful levels of methylmercury.
- The highest exposure among pregnant women in the U.S. was only 3.7 times the reference dose.
Takeaway
Eating fish that might have mercury doesn't make kids less smart, even if some studies say it does.
Potential Biases
The author suggests that Trasande et al. may have biased their analysis by omitting contrary evidence.
Limitations
The analysis by Trasande et al. is based on flawed assumptions and misinterpretations of data.
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