Its such a shame that the cheeses in the USA are that crazy yellow colour. Annatto in cheese does not exist here, totally different consumer market. Also it is in many juices, yoghurts and other drinks.
In my oppinion no amount of preservatives or additives are good for anyone, they all have detrimental effects on behaviour in children hyperactivity, concentration, restlessness etc etc If there is no colour free cheese alternative, I would be keeping cheese to very small amounts. For Jarrah the only preservatives he has is in cottage cheese, and pain meds if he needs them, we just can't get cottage cheese other wise and also birthday party food - when he goes to them occassionally. Kai only has preservatives and addtives through paracetemol and neurofen. We drink water in the house, that solves alot of additive issues.
For myself and DH we have small amounts when there is no alternative, but basically additive and preservative free.
Do you have access to a supermarket store called ALDI over there? - it is German owned. They have recently gone preservative and additive free for ALL their products.