A new study from NIH indicates that children with autism and more lead and less magnesium and zinc than do children without the disease. Further, using a laser approach to assess growth rings in teeth, the exposure to lead might be before birth.
What we don’t know is whether absorption of lead and lack of absorption of the other metals is due to how the child’s body processes these metals or due to simple exposure.
However, the findings suggest that pregnant women should avoid exposure to lead (a major source of which remains paint in older homes and buildings)
The findings also shifts some attention away from vaccines, as exposure to lead in the womb is well before the child is vaccinated.
- National Institutes of Health, “Baby teeth link autism and heavy metals, NIH study suggests,” Press release, 1 June 2017.