FOOD INTOLERANCE NETWORK FACTSHEET

Head banging

Head banging is one of the childhood problems such as restless legs and hyperactivity that have increased dramatically since the introduction of processed foods in the 1960s in the USA and 1970s elsewhere. Although never mentioned in parenting books 30 years ago, head banging is now considered to be a normal childhood behaviour, estimated to affect up to 20% of healthy children in the USA, and 5-15% of children in Australia.

 

Children often start head banging around the end of their first year. It is more common in boys than girls, and in children with autism. Toddlers usually bang their heads against their cot, but it can be walls, floors and other objects. Children who frequently engage in this behaviour can develop a bald spot or long lasting bruising as a result.

 

Paediatricians and psychologists generally suggest that head banging is an attention seeking or pleasurable repetitive behaviour and that parents should ignore it.

 

In my experience, head banging in both autistic and non-autistic children is related to food chemicals. Children aged three and under are unable to explain why they do it, although when they avoid certain food chemicals, their head banging stops. One mother who was already avoiding artificial colours reported that her two-year-old's head banging dropped from 10 episodes per day to only one within two days of avoiding annatto natural yellow colour (160b).

 

A twelve year old former head banger doing the failsafe diet for behaviour and learning problems reverted to banging his head repeatedly against a brick wall during his annatto challenge. After the episode, he was able to describe a headache so severe and overwhelming that banging his head seemed to be the only way to obtain relief.

 

Annatto 160b (from the seed coat of a tropical tree) is the most commonly used food colour in our food supply. It is found in a wide range of both healthy and junk foods, from breakfast cereals, yoghurt, custard, margarine and crumbed or battered foods such as fish fingers to icecream, biscuits and snack foods. Parents often choose foods labeled 'all natural - no artificial colours, flavours or preservatives' unaware that they can contain natural colour annatto 160b which has been shown to affect more people than artificial colours. The reaction is likely to be more delayed than with artificial colours, which makes it even more difficult to identify.

 

Preservatives, artificial flavours and other food chemicals can also cause head banging. The mother of a child with autistic spectrum disorder described how her young son reacted to a children's colour-free paracetamol:

 

"He became incredibly agitated, head banging, aggressive, thrashing ... inconsolable... we rushed to the doctor (because we were to hop on an international flight the next day!) and he sent us off for urgent blood and urine tests. While waiting for the tests (about 3 hours later I think) my son suddenly regained his composure and became calm."

 

Children generally grow out of head banging by the age of three or four. This is because the smallest children are most vulnerable to the effects of food chemicals - the effects of food chemicals are related to dose, and dose for weight, children eat, drink and breathe more than adults. As they grow, their tolerance increases. In autistic children, extremely food sensitive children, or those with a high intake of processed foods, episodes of head banging may persist.

 

Betacarotene natural colour 160, as found in carrots, is a safe alternative to annatto natural yellow colour  and artificial yellow. Although Australian food manufacturers say it is too difficult and expensive to use, betacarotene is used extensively as a colouring in Europe.

 

Reader’s story

[562] Yellow addiction (May 2007)

My son was restless from the day he was born. His paediatrician told me to not feed him dairy or wheat and suggested I feed him meat and vegetables and fruit for the first year of his life. When he was one, I decided to broaden his diet a bit and started feeding him vanilla ice cream. I didn’t understand at the time, but he started throwing the most awful tantrums and head banging. He became obsessed with the colour yellow. He only wanted to wear yellow clothes, draw with yellow pencils and chose toys that were yellow. My friends constantly commented on his yellow addiction. I used to feed him corn and cheese omelettes for dinner with vanilla ice cream and banana for dessert. I’d mix the banana in thoroughly so the ice cream looked more yellow. It wasn’t until 18 months later that I started learning about nasty food chemicals, and learned that annatto 160b natural yellow colouring was causing a lot of problems. When we got together with other mothers, he’d go straight for yellow food and always want yellow drinks. It was a bit of a joke really. He’d choose yellow lollies over other colours and when I asked him what colour he wanted his room painted, he of course said Yellow. I stopped allowing him food with 160b in it, but still let him have it when he went out. My friends thought I was over the top with food.

One day after meeting with my friends, and my son eating their yellow food, he went off the rails. I managed to get him into the car, (which is hard when they stiffen their bodies like a board) and drove him to my friend’s house. He was screaming in his car seat, Let me out, let me out and was struggling like crazy in his seat. We drove up her driveway and my friend said Oh my god, what’s happened to Liam?  I explained this is what happens when he eats bad food chemicals. It was only after this that she actually believed me. I then became strict and totally eliminated it from his diet. His headbanging stopped and his outrageous tantrums stopped also. I then realised that his obsession with yellow was caused from an addiction to yellow food. When I eliminated it from his diet, he began to choose other colours to wear. He’d choose other coloured lunchboxes, drink bottles and hats. I’ve never heard any other parent mention the colour phenomenon, but I still believe it was connected to his addiction to 160b. – Helen, NSW (similar stories to suedengate@ozemail.com.au please)

What you can do

 

1. For autistic children, go straight to step 5.

 

2. Read all ingredient labels

 

3. Avoid artificial colours and annatto 160b. The following items are examples of colour free products:

  • Peters Original Vanilla Icecream
  • Vaalia plain yoghurt (you can add your own flavourings)

 

4. Avoid preservatives and artificial flavours, especially in children's medications

 

5. If head banging persists, you might want to do a trial of the failsafe diet, to find out exactly which food chemicals are causing your child's problem. See Factsheet 'How to start the failsafe diet'.

www.fedup.com.au

The information given is not intended as medical advice. Always consult with your doctor for underlying illness. Before beginning dietary investigation, consult a dietician with an interest in food intolerance. You can find a supportive dietitian through the Dietitians Association of Australia www.daa.asn.au or write for our list of supportive dietitians (confoodnet@ozemail.com.au)

© Sue Dengate update February 2005