The vast majority of autistic children have low zinc levels.
This clinic uses serum zinc as a marker.
Levels are checked at the same laboratories using the same protocol, Specimens are collected by the same blood collectors using the same collection techniques.
With this degree of standardization we are confident that our results are accurate and reproducible.
The spread of zinc levels is charted below and it is clear that on average the autistic group have a significantly lower level than non symptomatic people.
Low dietary intake.