A bipartisan group of 29 senators is urging the Food and Drug Administration to finalize its guidance on how much fish is safe for pregnant women to eat.
The FDA had previously cautioned against pregnant women eating too much fish because of mercury levels that can harm fetal development.
In June 2014, the agency issued a draft of updated guidance that kept in place certain limits but also recommended a minimum level of lower-mercury fish that pregnant women should eat to avoid missing out on certain nutrients.
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