The causative factor for autism now appears to be a deficient supply of insulin-like growth factor-1
(IGF1
) and vitamin D3 in many newborn and infants, thereby leading to persistently insufficient myelin
in developing cranial nerves. Various malformed neurologic networks last into adulthood. Of particular
concern is a pregnancy exposed to febrile viral conditions, where interleukins suppress IGF1
production.
Breastfeeding of the newborn may be preventative in many such cases.
