When I was around 4 years old I had quite severe behavioural problems, so my mum went from doctor to doctor looking for a possible solution. Eventually one doctor suggested the Feingold diet. I started the elimination diet in 1986, and my parents found an immediate improvement. One day my grandparents gave me red cordial which pretty much confirmed the effects of food additives. My parents and I found that I reacted to salicylates, and lots of artificial colours and flavours.

I went from a kid who everyone said would grow up to be a juvenile delinquent, to a better behaved kid who is now 21, studying for an Information Technology Bachelors degree. I also finished a 12-month employment contract not long ago and started a new job.

I'm surprised that it's only recently that people have been talking about the link between food and behaviour. - Danny, student