Last week the March of Dimes and other advocacy groups sent a letter to the Food and Drug Administration urging the agency to allow fortification of corn masa with folic acid. It’s a wise measure, and the FDA says it plans to review the petition for the change “as expeditiously as possible.” Meanwhile, countries that don’t yet have folic acid fortification are considering the measure. Public health officials in Scotland have grown so frustrated by the lack of action on the issue in the U.K. that they may go it alone. But all of this important action on folic acid raises another, unexpected question: Could some people be getting too much of this life-saving vitamin?
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