If you're not of African, Asian, Mediterranean or Middle Eastern ancestry, then you likely don't have it. There seems to be no causative link with Autism Spectrum Disorders.
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G6PD Deficiency is a genetic disorder found mostly in people of African, Asian, Middle Eastern and Mediterranean decent which can cause anemia under certain conditions. Although it can be fatal under the right circumstances, it is quite easy to control when you know how.
The proper name for it is Glucose 6 Phosphate Dehydrogenase Deficiency, which is why it has a short name. Back in the 1950′s and 1960′s we called it Familial Congenital Nonspherocytic Hemolytic Anemia Glucose 6 Phosphate Dehydrogenase Deficiency. And I had to memorize it so I could tell the doctor if I ever had to. This genetic disorder is basically an anomaly of the gene on the X-chromosome that controls the production of G6PD in cells.
Link to Refence:
G6PD Deficiency Website