What does mercury do to a pregnant woman?

How does mercury affect an unborn baby?

Methylmercury (MeHg) is an organic form of mercury that can damage the developing brains of human fetuses. Women who consume methylmercury during pregnancy can bear children who have neurological issues because methylmercury has toxic effects on the nervous system during embryonic development.

Is mercury bad for pregnancy?

Though mercury can harm a developing baby’s brain, eating average amounts of seafood containing low levels of mercury during pregnancy hasn’t been shown to cause problems. And the omega-3 fatty acids in many types of fish can promote a baby’s healthy cognitive development.

How much mercury is harmful pregnancy?

Some types of fish contain high levels of mercury, which can be harmful to the developing fetus. Pregnant women should: Limit to one serve (150g) per fortnight – billfish (swordfish, broadbill and marlin) and shark (flake), with no other fish eaten in that fortnight.

How do you know if you have mercury poisoning while pregnant?

Blood and hair can be tested to determine exposure to methylmercury. Blood tests are good for detecting methylmercury right after exposure occurs. Hair testing may be able to detect ongoing (chronic) mercury exposure.

Can too much mercury cause miscarriage?

Studies in animal models and accidental poisoning in humans revealed that lead, cadmium and mercury resulted in miscarriages stillbirth and even fetal malformation [21].

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How long does mercury stay in the body?

Mercury does not stay in the body forever. It takes about six months to a year to leave the bloodstream once exposure stops. Some researchers think mercury can permanently damage the nervous system in children.

What birth defects does mercury cause?

Mercury’s harmful effects that may be passed from the mother to her baby include brain damage, mental retardation, blindness, seizures, muteness, and lack of coordination. Children poisoned by mercury exposure after birth may develop problems of their nervous and digestive systems, and suffer kidney damage.

Can I eat canned tuna while pregnant?

You can eat skipjack and light canned tuna alongside other low-mercury fish a few times each week, but should limit or avoid albacore, yellowfin and bigeye tuna.