Should Pregnant Women Eat Zero Tuna?

<a href="https://www.flickr.com/photos/tudor/3727867812/in/photolist-6FqidY-6Mw73S-Mega7-ah1XjQ-55uAeV-iovu8-ah1Xt9-nkuDs3-cdmz7J-7xRTGe-9Y5Qkh-4HkD6y-stG92-cMDX1C-d3H5MC-5PUz81-e841Yy-7xVHwd-79iE6j-hUjcM-4Fx5BF-agHeGk-akqFWh-a5XCfw-o9EumM-evtx9B-6fiAYB-6ud4Bi-bg4apM-9eEnZx-dgWqY5-8DsoS6-8DsoR4-gNiMiw-rig3-c1JN3G-87cULb-hUjeo-2vVVWj-8DsoQ4-8Dvvr5-8Dvvo5-8DsoYR-bAXZaJ-Hh2Sa-6TQL5G-7ykz8P-78cHvt-8Dvvn9-8DsoUe">TheGiantVermin</a>/Flickr

For indispensable reporting on the coronavirus crisis, the election, and more, subscribe to the Mother Jones Daily newsletter.


Food-safety experts at Consumer Reports crunched the numbers on mercury levels in seafood—and they have a new recommendation for pregnant women: Don’t eat tuna at all.

The FDA recommends that pregnant and nursing women consume between 8 and 12 ounces of fish per week to provide proper nutrition for a baby’s brain development and overall health. But some fish are very high in mercury, a neurotoxin that can lead to serious cognitive problems and birth defects in children and babies. And the mercury levels in oceans are rising—humans have tripled the mercury content in oceans since the Industrial Revolution—leading to further mercury absorption by predators like tuna.

Consumer Reports provides charts to help curb mercury levels during fish consumption. Courtesy of Consumer Reports

A team at the Consumer Reports National Research Center analyzed data from the Food and Drug Administration’s chart on mercury levels in seafood and determined that consuming 6 ounces of albacore tuna in a week—the level recommended as safe by the FDA for pregnant women—would put a 125-pound woman over the Environmental Protection Agency’s “safe” mercury threshold by more than two ounces.

Canned light tuna is thought to offer a lower mercury tuna option, but 20 percent of the FDA’s samples of it contained almost double the average level of mercury that it’s supposed to. Some samples had more mercury than the king mackerel—one of the FDA’s top four high-in-mercury fish—which the agency advises pregnant women and children to avoid. Canned tuna constitutes the second most frequently consumed seafood product in the United States.

Some experts like Deborah Rice, a former senior risk assessor for the EPA, think that research since 2001 suggests that there is “no question” that the FDA and EPA’s current limit for mercury consumption is “too high,” she told Consumer Reports. The magazine is urging the FDA and EPA to recommend that pregnant women avoid eating any tuna—and to provide more safety information concerning tuna for pregnant women, children and people who eat a lot of fish (24 ounces of fish, around seven servings, or more per week).

SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

payment methods

SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate