I would always be very wary about getting any food sensitivity testing done within a proper medical facility.
This report was done in an investigation by Chris Packham.
www.bbc.co.uk/insideout/south/series2/food_sensitivity_allergy_vega_tests.shtml
In the current climate of self help, alternative treatments and complimentary therapists, food allergies appear to be the latest cause of ill health. But how accurate are these food sensitivity tests? Chris Packham goes undercover to find out.
Hundreds of thousands of people take a food sensitivity test every year to discover if their ill health is a direct result of their diets. Most walk away with a list of foods to avoid. Chocolate, cheese and wheat are among the usual suspects of irritant foods.
Chris Packham undercover at Holland and Barret
Chris pays a visit to three Holland and Barrett stores to be tested
Problem foods are detected using a Vega machine. The machine claims to measure the body’s energy levels. These levels are meant to decrease when the body comes into contact with certain foods.
Health food chain, Holland and Barrett are one such company offering these tests.
Undercover investigation
We sent Inside Out’s Chris Packham to three Holland and Barrett stores across the South to find out more.
Chris took the Vega test in Newbury, Chichester and Farnborough, only to discover that his allergy results differed from store to store.
In total, Chris was sensitive to over 33 different foods, including staples like wheat, potatoes, milk, tomatoes, tea and coffee. But out of the 33 products, there was only two that all three testers agreed on - cheese and chocolate.
Chris Packham in the kitchen
According to the three Vega tests, Chris should avoid a total of 33 foods - good luck Chris!
Chris was also advised by Holland and Barrett staff to take a total of 20 different vitamins and minerals. But again, the testers can’t seem to agree and all three testers advised different supplements.
It seems your allergies may not be determined by food alone, but also your location.
Second time lucky
To give Holland and Barrett and the erratic Vega machine a fighting chance to get it right, we sent another member of the Inside Out team.
This time it is the stores in Southampton, Brighton and Dorchester that were put to the test. Once again the machine showed different results in different stores and this time the testers could only agree on one food product.
Inside Out put these findings to Holland and Barrett, who informed us that the tests carried out in the stores are actually conducted by another company called HSL, Health Screening UK Ltd.
Response
The Vega machine
The Vega machine is only 70% accurate
A spokesman for Holland and Barrett assured us that the points raised in the programme are being investigated.
"In light of the issues raised, we are already carrying out a full review of the services that HSL provide."
Chairman of HSL, Roy Harris admits that the food sensitivity tests are only about 70% accurate.
"We have an imperfect system that works in the end because people eliminate certain things from their diet," says Roy. "It may just be the discipline of sitting down with somebody and agreeing to cut out the nasty things in their diet."
If this is the case, what use is the Vega machine?
"It does stretch the imagination how the Vega test works," admits Roy. "But we have thousands of letters from people saying how much better they feel."
So whether it’s a case of mind over matter, or sheer guesstimation, the Vega testing appears a dubious form of diagnosis.
While Chris battles on minus his 33 food products, Holland and Barrett battle to secure a more satisfactory form of food allergy testing.