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How Our Food Is Processed

Dr. Greene on how our food is processed…

Additives

Researchers at the University of Southampton studied over 1800 three-year-old children, some with and some without ADHD, some with and some without allergies. After initial behavioral testing, all of the children got one week of a diet without any artificial food colorings and without any chemical preservatives. The children’s behavior measurably improved during this week. But was this from the extra attention, from eating more fruits and vegetables , or from the absence of the preservatives and artificial colors?

To answer this question, the researchers continued the diet, but gave the children disguised drinks containing either a mixture of artificial colorings and the preservative benzoate, or similarly colored drinks from natural food sources. The results were published in the June 2004 Archives of Diseases in Childhood13. The weeks that children got the hidden chemicals, their behavior was substantially worse. This held true whether or not they had been diagnosed with hyperactivity, and whether or not they had tested positive for allergies – good news for parents everywhere!

Removing artificial colors and preservatives from the diet was dramatically effective at reducing hyperactivity-somewhere between the effectiveness of clonidine and Ritalin, two prescription ADHD drugs. How much better to support children’s mood and behavior with healthy food, than with drugs! Some children may still need medicine, but with a healthy diet , we may be able to use lower doses. And it stands to reason that this diet would be better for all children, whether or not they have behavior problems.

Read More From This Series:
Part 1 – Brain Food For Your Kids: How Do You Score?
Part 2 – From Backyard Gardens to Kindergartens
Part 3 – Brain Building
Part 4 – How is your food grown?
Part 5 – Antioxidants – Extra Credit
Part 6 – How Our Food Is Processed
Part 7 – Refined Sugars and Flours
Part 8 – School Fuel: Homework for Parents
Part 9 – How Much Does a Child Need Each Day?

13 Bateman B, Warner JO, Hutchinson E, Dean T, Rowlandson P, Gant C, Grundy J, Fitzgerald C, Stevenson J. 2004. The effects of a double blind, placebo controlled, artificial food colourings and benzoate preservative challenge on hyperactivity in a general population sample of preschool children. Archives of Disease in Childhood. 89:512-515
Last medical review on: August 18, 2011
About the Author

Alan Greene MD

Photo of Alan Greene MD
Dr. Greene is a practicing physician, author, national and international TEDx speaker, and global health advocate. He is a graduate of Princeton University and University of California San Francisco.
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