Emily Willingham has an excellent article on "growing out of" autism here:
http://www.forbes.com/sites/emilywillin ... of-autism/It's critical to note that many of the people described as having "grown out of" autism have symptoms that the study authors decided to pin on “inhibition, anxiety, depression, inattention and impulsivity, embarrassment, or hostility” instead of the autism these people supposedly grew out of. Yep - whatever.
It annoys me that if you and your caregivers work spectacularly hard to intervene and meet your needs and you are successful, they simply erase your struggle. Just because you are successful at mitigating your deficits does not mean that the deficits don't exist any more. Nobody says the double amputee Paralympian has feet.
ETA: Looks like this is one of those "autism diet cure" books. Many, many kids of parents on this board - and adults on the rest of the site - have difficulty with different kinds of foods. They have all kinds of food intolerances and allergies that are real and diagnosed, and report an improvement in general symptoms when those foods are avoided, or when treatment is provided. ANYBODY whose digestive system is out of whack will see global effects, for instance improvement in behavior or focus, etc. Anyone who is uncomfortable or sick for whatever reason has a reduced ability to cope. Period.
There is no clinical evidence that any particular type of diet can cure autism. (See the Mayo Clinic:
http://www.mayoclinic.com/health/autism ... nt/AN01519 )