Many children love to eat snacks and drink soft drinks, but too much snacks and soft drinks may lead to the increase problem of over-active children. In the early 1970s there are already studies shown that artificial food coloring is related to hyperactivity. A recent study published in the UK, the study divided into two groups of children, to drink a mixture of different doses of artificial food coloring and the preservative sodium benzoate in beverages, record their activities and change in terms of concentration. Results of the study, with the artificial food coloring and the preservative sodium benzoate, or both mixed drinks, it will affect the behavior of children growing up, but will also stimulate the children suffering from ADHD. In August this year, major supermarket chains during the collection of 84 models often eat packaged snacks and beverages, found that up to 40 cookies, candy, drinks and gels, containing one or more related artificial food coloring.

Two food manufacturers’ instructions will be replaced by artificial food coloring pigment. Beginning in July of this year, food that have the 6 artificial food coloring must add “may have an adverse effect concentration on children's behavior “of the words.

Therefore, children with attention deficit and hyperactivity disorder should be under the guidance of a doctor or nutritionist, eating habits, and gradually make it identify and reduce the consumption of food allergens.