In my research, i found an article which is about a “GFCF Kids Diet Survey” which is an internet based survey used to gather information about dietary intervention such as a GFCF diet, for patients on the autistic spectrum. This article explains that many researchers are working to find the possible link between “incomplete breakdown of proteins (identified by the abnormal presence of opiate peptides found in urine samples), and several kinds of health problems hitherto classified as "mental." Among these problems are Autism, Pervasive Development Disorder (PDD) and Asperger’s Syndrome.”

The survey was designed so that researchers would be able to collect as much information as possible on the diet, and then analyze the data in an effort to shed more light on the possible connections.  The survey consisted of two questionnaires, called the Main Survey form and the Infringements Experience form. The three basic questions asked in the survey are: “What percentage of respondents get better on the diet, how much improvement can there be, and how fast does this happen?”  In addition to those questions, the survey also asks questions such as,Why do some patients get better results than others? What are the similarities and differences between those who do well on the diet, and those who don't?” The article also discuss the various aspects of the survey, such as the methods used, the surveys reliability, as well as the specific questions included in the main and infringement questionnaires. 

The conclusion of this survey suggests that although the results are from an informal survey, they indeed support the belief that dietary intervention “can be a valuable treatment option for some people with autism spectrum disorders, and in some cases, may lead to the complete reversal of autistic behaviors.”  The results also suggest that” time” is one of the most crucial factors in this diet, meaning that a patents success has a lot to do with the patients age at the time the diet was implemented.