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DESCRIPTION: Exposure to mercury during pregnancy appears to influence fetal brain development as detected by decreased size of a newborn’s brain.
I’ve covered mercury in fish before in videos such as Nerves of Mercury (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/nerves-of-mercury/index.html), Hair Testing for Mercury Before Consider Pregnancy (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/hair-testing-for-mercury-before-considering-pregnancy/index.html), and Fish Fog (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/fish-fog/index.html). For more on canned tuna in particular, check out:
• Which Brand of Tuna Has the Most Mercury? (
• Carcinogenic Putrescine (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/carcinogenic-putrescine/index.html)
• The Effect of Canned Tuna on Future Wages (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/the-effect-of-canned-tuna-on-future-wages/index.html)
• Amalgam Fillings vs. Canned Tuna (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/amalgam-fillings-vs-canned-tuna/index.html)
• Mercury in Vaccinations vs. Tuna (file:///Users/MichaelGreger/Downloads/nutritionfacts.org/video/mercury-in-vaccinations-vs-tuna-2/index.html)
What else can we do to protect our newborns? See:
• DDT in Umbilical Cord Blood (
• How Fast Can Children Detoxify from PCBs? (
• The Wrong Way to Detox (
• Diet Soda and Preterm Birth (
• Meat Fumes: Dietary Secondhand Smoke (
But what about the long chain omega-3 DHA in fish—isn’t that necessary for healthy brain development? That’s the topic of my next video, Mercury vs. Omega-3s for Brain Development (
Have a question for Dr. Greger about this video? Leave it in the comment section at and he’ll try to answer it!
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