Dear Snoopy,
Yes, most of his autistic behaviours seem to be very much related to digestive/GI issues.

(So, he may not be autistic per se, but rather, he may have cerebral allergies caused by certain foods, and without these foods he's quite normal; do I have that right? )
I wish so! But no, he's not completely normal but his behaviour is quite normal. He has the typical problems with communication, speech, social interaction and imagination which is characterictic of autism.

Even though he's on a restricted diet, his yeast keeps coming back because :
1. I'm not able to strictly follow the anti-yeast diet of less carbs, more protein for him (we are vegetarians and so any form of animal protein is out, I give him eggs though. He's allergic to most other plant proteins.) So his diet consists of rice, vegetables and eggs. Of late he refuses eggs and vegetables.

2. He has a lot of toxic heavy metals (lead,mercury,arsenic, cadmium,bismuth) in his body (we got a hair test done) which are said to attack various systems of the body incl. digestive system causing yeast overgrowth. It has been found that children who have had chelation treatment of heavy metals no longer have such problems like yeast when a substantial amount of heavy metal load has been removed.

3. My son is also on a chelation treatment for heavy metals and the compounds used in this process actually cause yeast overgrowth in the process of pulling the metals out.

Reg. other foods that he craves, he likes all milk products (ice cream, chocolate etc.) Yes, he loves bread very much.

(So, you're saying that eventhough you have severely altered his diet, he still gets yeast overgrowth and then the bad behaviors come out, is that right?)
Yes, thats right.

To answer the questions from your earlier post,
1. Did the yeast problem come after the autism, before, or at the same time?
I'm not sure. He may have had minor problems(yeast) before but never had behaviour problems until a few months back. He did have a lot of bloating, indigestion last year (he was not on enzymes then)

2. Was he always autistic or did this develop after a particular event, or illness, or injury, or medicines/injections, etc.?
He developed normally until about a year (at 11 months he was saying a few words) when I noticed that he was not responding to his name being called. At 14-15 mths of age, he lost all the words and probably lost eye contact (we didn't notice much as he seemed quite normal otherwise).

He was receiving his vaccines regularly so I dont know if anything caused it. (some vaccines contain mercury in them)
He had malaria at 8 months of age. Maybe this triggered it? I dont know either.

3. What symptoms would make one suspect autism?
Autism impairs the ability to communicate, interact and think imaginatively. It may or may not affect speech.
My son talks in about 3 or 4 word combinations now.

4. Describe his nature.
Generally pleasant and lovable boy (when there are no GI issues!) very affectionate towards me. But his communiaction is limited to asking for things he really likes.

5. What is he afraid of?
He's afraid of his father, grandparents sometimes - more when he has a yeast problem!

6. What does he like to do?
likes to play with his toys, listen to music and watch videos.

7. Is there anything he says again and again?
No

8. Is there anything he does again and again?
plays with his lego blocks and climbs (window)

9. How independent is he?
independent at eating (only if he likes his food), partly independent at dressing up.

10. What makes him angry and how does he express his anger?
he gets angry when someone takes away his blocks or disturbs him when he's playing - in general, interrupts what he does. He screams, cries, pinches or pulls hair.

Thanks
Krish