Mercury Intake During Pregnancy Increases Risks of ADD/ADHD
Increased mercury in mom during pregnancy (which is known to be associated with increased fish consumption in pregnancy) – is directly linked to severity and likelihood of having your baby/ child develop ADD or ADHD.
Think toxins, toxins, toxins! As toxin burdens rise in our bodies – it becomes ever more important to do everything we can to reduce toxic exposures of all toxins in our children.
Here is the Article Abstract For You to Read:
Prenatal Exposure to Mercury and Fish Consumption During Pregnancy and Attention-Deficit/Hyperactivity Disorder–Related Behavior in Children Sharon K. Sagiv, PhD, MPH; Sally W. Thurston, PhD; David C. Bellinger, PhD, MS; Chitra Amarasiriwardena, PhD; Susan A. Korrick, MD, MPH
Arch Pediatr Adolesc Med. 2012;():1-9. doi:10.1001/archpediatrics.2012.1286.
Published online October 2012
Objective To investigate the association of prenatal mercury exposure and fish intake with attention-deficit/hyperactivity disorder (ADHD)–related behavior.
Methods For a population-based prospective birth cohort recruited in New Bedford, Massachusetts (1993-1998), we analyzed data for children examined at age 8 years with peripartum maternal hair mercury measures (n = 421) or maternal report of fish consumption during pregnancy (n = 515). Inattentive and impulsive/hyperactive behaviors were assessed using a teacher rating scale and neuropsychological testing.
Results The median maternal hair mercury level was 0.45 μg/g (range, 0.03-5.14 μg/g), and 52% of mothers consumed more than 2 fish servings weekly. In multivariable regression models, mercury exposure was associated with inattention and impulsivity/hyperactivity; some outcomes had an apparent threshold with associations at 1 μg/g or greater of mercury. For example, at 1 μg/g or greater, the adjusted risk ratios for mild/markedly atypical inattentive and impulsive/hyperactive behaviors were 1.4 (95% CI, 1.0-1.8) and 1.7 (95% CI, 1.2-2.4), respectively, for an interquartile range (0.5 μg/g) mercury increase; there was no confounding by fish consumption. For neuropsychological assessments, mercury and behavior associations were detected primarily for boys. There was a protective association for fish consumption (>2 servings per week) with ADHD-related behaviors, particularly impulsive/hyperactive behaviors (relative risk = 0.4; 95% CI, 0.2-0.6).
Conclusions Low-level prenatal mercury exposure is associated with a greater risk of ADHD-related behaviors, and fish consumption during pregnancy is protective of these behaviors. These findings underscore the difficulties of balancing the benefits of fish intake with the detriments of low-level mercury exposure in developing dietary recommendations in pregnancy.