2-3 weeks! It was incredible!!! We are all GFCF to avoid any contamination. We tried to introduce dairy back after a year and a half...but he was a mess, so GFCF we stay:) Good luck! When it works it really works, some friends didn't have luck with the diet:(

I am off of dairy myself and I can honestly say..when I do have something with dairy I end up having weird dreams. Their is an article about the casein protein that is in dairy and how it affects neurotransmitters, the article also includes the gluten protein as well. I'll have to look it up if someone is interested in seeing the article.

I transitioned my son over a 6 week period to GFCF and he started showing good results after the 6 weeks. I was amazed because for the first time ever he started singing along with a Sesame street alphabet song! I grabbed the video camera and recorded it!!! I did the transition very slow and carefully and he transitioned very well. I have my method written down on how I got him to eat the new gfcf foods.

Within 6 weeks my DD had gained 6 lbs. and 1/2" in height. She went from being <3rd percentile for both height and weight to 5th percentile for height and 25th for weight. Her ASD symptoms were improving before she went GFCF and continued to improve on it, so it's hard to tease apart the effects of the diet vs. her other therapies. But the dramatic "catch-up" gain was enough to convince me to keep her on it past the original 6 mos. trial (which would actually have been up this week).

After a month I saw eye contact increase! I am very strict with the diet though and use all organic with my children and I also removed, wheat, soy and dairy. He is trying to speak now! Were in month 4-5 and they are both thriving. My 15 year old with ADHD and HF-ASD with high anxiety. He is so calm now and easier to talk to and is able to take questions a little better but he has been the hardest to change into the diet because he is a picky eater to begin with. He has like 5-10 items he eats ritualistic but I started by replacing chocolate, and baking lots of cookies and brownies which are his favorites, mac-n-cheese etc. He is very picky! My 2year old with ASD he is so easy he will try a lot of foods and has a better range for tasting. Keep up the good work and good luck if you need more help go to my pinterest! http://pinterest.com/lucybourque/