Write answers to the following

Which diseases are caused by artificial food colours?

ADHD (Attention Deficit Hyperactivity Disorder) is caused by artificial food colours.

(i) Tourette syndrome has been found to occur more commonly in the ADHD population.

(ii) People with ADHD have an increased risk of persistent bed wetting.

(iii) Restless legs syndrome has been found to be more common in those with ADHD and is often due to iron deficiency anaemia.