ok hope this helps I thought I had a link to the page I visited the other week but can't find it bugger

anyway with our son we narrowed it down to pres 223 once he stopped that which is found in sausages, cheerios, kabana, cordial and lot of juices etc his behaviour did improve

goog;e additives to avoid

There are over 50 widely used food additives which are known to cause behavioural, health and learning problems in children and adults (evidence based on research on over 20,000 patients at the Royal Prince Alfred Hospital's Allergy Unit in Sydney).
Colours

Artificial Colours
102 tartrazine
104 quinoline yellow
107 yellow 2G
110 sunset yellow
122 azorubine, carmoisine
123 amaranth
124 ponceau, brilliant scarlet
127 erythrosine
128 red 2G
129 allura red
132 indigotine, indigo carmine
133 brilliant blue
142 green S, food green, acid brilliant green
151 brilliant black
155 brown, chocolate brown
Natural Colour
160b annatto, bixin, norbixin


Preservatives

200-203 sorbic acid, potassium & calcium sorbates
210-213 benzoic acid, sodium, potassium & calcium benzoates
220-228 sulphur dioxide, all sulphites, bisulphites, metabisulphites
249-252 all nitrates & nitrites
280-283 propionic acid, sodium, potassium & calcium propionates
Antioxidants
310-312 all gallates
319-321 TBHQ, BHA butylated hydroxyanisole, BHT butylated hydroxytoluene


Flavour Enhancers

620-625 glutamic acid and all glutamates, MSG monosodium glutamate
627 disodium guanylate
631 disodium inosinate
635 ribonucleotides
Yeast extract, HVP HPP hydrolysed vegetable or plant protein

Also see thefood intollerance network for more information on MSG and glutamates.


Flavours

Unregulated

Artificial Sweeteners
There are various reports on the negative affects of consuming aspartame (951) such as causing brain tumours and increasing appetite. The safety of aspartame is not proven. Consuming "diet", "lite" and "no added sugar" products may not assist weight loss. There are also reports of addiction. We do not recommended consuming products containing aspartame. Sugar is a natural alternative. Artificial sweeteners in general are unnecessary, artificial and not recommended.
951 aspartame (Nutrasweet, Equal)