If you come in contact with high levels of mercury during pregnancy, it can cause real problems for you and your baby. Mercury can damage many parts of your body, including your lungs, kidneys and nervous system (that includes the brain, spinal cord and nerves). It also can cause hearing and vision problems.
Why is high mercury bad for pregnancy?
If you regularly eat fish high in mercury, the substance can accumulate in your bloodstream over time. Too much mercury in your bloodstream could damage your baby’s developing brain and nervous system.
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.
What happens when your mercury levels are high?
Long-term exposure to high levels of methylmercury causes effects primarily on the nervous system. Symptoms of long-term high level methylmercury exposure include disturbances in vision, hearing and speech, as well as tingling and numbness in fingers and toes, lack of coordination and muscle weakness.
Can too much mercury cause miscarriage?
Studies have shown that heavy metals like lead (Pb), cadmium (Cd), and mercury (Hg) have toxic effects on reproductive outcome and are also associated with miscarriages . Skeletal lead can be mobilized from bone during pregnancy and passed on from mother to the fetus .
Does mercury affect fertility?
Mercury can alter the shape, movement of sperm and decrease its quantity and quality. In men exposed to Hg, a reduction in erection, quality of sexual acts and ejaculation was found. Research indicates that Hg influences the levels and function of oestrogen and reduces fertility in women.
Why is tuna bad during pregnancy?
Tuna is a fish that often contains high levels of mercury. Ingesting too much mercury during pregnancy can harm the development of your baby’s brain and nervous system, ultimately resulting in a range of health and developmental problems.
Does mercury cause birth defects?
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.
How long does mercury stay in your 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. 7.
What gets rid of mercury?
Mercury is also eliminated in urine, so drinking extra water can help to speed up the process. Avoiding exposure. The best way to get rid of mercury in your body is to avoid sources of it whenever you can. As you reduce your exposure, the level of mercury in your body will decrease as well.
Who is most at risk for mercury poisoning?
People at higher risk from mercury exposure include:
- unborn babies.
- children up to six years of age.
- workers in industrial settings where mercury is used or produced.
- people with kidney disease.
- people born before the 1950s who were exposed to mercury in baby products and contracted pink disease.
How do heavy metals affect pregnancy?
Lead and other heavy metals. Working with lead or other heavy metals could increase your chances of having a miscarriage, a stillbirth, or a child with a birth defect. These metals can also affect a baby’s brain development.
Does mercury cross the placenta?
The heavy metals mercury, lead, and cadmium are toxicants, which are well-known to cross the placenta and to accumulate in fetal tissues. Prenatal exposure to mercury and lead poses a health threat particularly to the developing brain.
Can Tuna cause birth defects?
Canned tuna and most other fish and seafood contain some amount of toxic mercury that has worked its way through the food chain because of industrial pollution. In adequate doses the metal can damage the developing nervous system in fetuses and children.