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- Last Updated on Monday, 25 October 2021 16:58
Deborah Manners BSc(Hons)DipEd
Founder, Director
Video interview, 'What drives you?'
If only I'd had this knowledge before - I could have saved myself years of misery! But now you benefit from all our research on food toxins.

Back in the 1970s all I wanted was relief - and weight loss. But because there was little information - I took the long road of investigating food intolerance. Years of studying the medical journals - and I got answers! Knowledge really is power.
I had constant symptoms (headaches, anaemia, sinus pain, chronic tiredness, glandular fever, pneumonia, gastro symptoms, frequent virus infections - even after two miscarriages and a life-threatening blood disease - doctors were unable to heal me - or even tell me why.
I had always followed well-known nutritional 'rules' - but had gained many kilos without explanation. For two decades I had dozens of tests and many pills and antibiotics - with all their side effects. But nothing changed.
So I decided to apply my experience and qualifications in Science. In 1996 after months of research in university libraries reading dozens of studies - I tracked down the possibility of food intolerance and began experimenting with foods. Well, what a revelation!
This is me today - well, energised and so much slimmer! That was the 'long road'.
From this we created first the Healing Program used by thousands with great results.
Based on the vast amount of emerging evidence on FOOD TOXINS it has been redeveloped for foodintol® LoTox.
RESEARCH & REFERENCES
All foodintol® information is based on research from peer-reviewed medical journals
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- Last Updated on Friday, 31 December 2021 14:52
Deborah Manners: Specialist Food Toxins & Disease
Founder - The Food Intolerance Institute of Australia
Video interview, 'What drives you?'

Deborah Manners Bsc(Hons)DipEd has been a writer, producer and presenter since 1985. Now as Director of The Food Intolerance Institute of Australia - foodintol® she combines years of experience in delivering concise messages in different media with extensive knowledge of food intolerance.
Her knowledge of the terrible effects of food intolerance sprang originally from solving her own food issues. When the doctors could not help she turned to the medical research literature.
Then as she was able to help more and more people become well - she became an expert in her own right. Now there are thousands of grateful 'converts'.
Ms Manners is a leading expert and authority on food toxins as a consumer issue. She has authored a series of how-to guides and journals for food intolerant consumers - available as the LoTox Living Kit.
Other books include:
- On The Origin Of Disease (2015)
- Stealthy Damage (2020)
- Food Toxins Linked to Heart Disease, Cancer, Obesity and Dementia (2021)
From mathematics, chemistry and physics teacher to TV production and food intolerance expert: corporate training and documentary programs for Cadbury Schweppes, Kraft Foods, and others. Later she was business development manager with global accounting firm Ernst & Young.
In 2002 after many years of research solved her own food issues, Deborah realised there was a major gap in how food intolerance is addressed in Australia, and launched foodintol.com in July 2003. Within eight months the site enjoyed top internet rankings which persist today.
RESEARCH & REFERENCES
All foodintol® information is based on research from peer-reviewed medical journals
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- Last Updated on Thursday, 28 October 2021 11:06
Testing Methods for Food Intolerance
Types of Testing For Food Intolerance
Have you had clinical tests for food intolerance, followed all the instructions - but still suffer with symptoms? Clinical testing frequently gives 'inconclusive' answers - and each test result may call for further tests.
But the Journal method is fast and accurate - as used foodintol®LoTox Living.
Clinical Tests from your Doctor
Your medical doctor (GP) may use:
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- Several kinds of blood tests
- Hydrogen breath testing*
- Allergy testing (e.g. by skin pinprick method)
- Gastroscopy (tube guided into stomach while under anaesthetic)
- Intestinal biopsy (small tissue sample taken under anaesthetic)
- Stool (faecal) analysis
- Skin sample analysis (e.g. with flaking skin infections)
- Genital swab (e.g. for fungal conditions)
*No longer practised by many doctors who cite unreliable results
Tests from a Naturopath
A naturopath or alternative medicine practitioner may use:
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- Iridology (diagnosis by looking into the iris of the eyes)
- Homeopathy - examination of the eyes, skin, tongue and pulses
- Vega testing (now discredited among many professionals)
- Other methods
Most clinical testing relies on your doctor's interpretation of the results - and that many tests return 'inconclusive'. You may need further series of tests to gather more information. Unfortunately, conclusive results are not often found using clinical tests.
I think I might have food intolerance: What should I do?
Begin with our free e-book. Research indicates doing nothing can be a risk. Food toxins can cause serious long-term health problems - leading to disease.
Learn more with the Free ebook about Food Toxins
Am I affected? How common is food intolerance?
Many people feel they are not affected by food intolerance. But the research evidence says otherwise. Research says 75% (3 in 4) of all people have some type of food sensitivity. A few statistics:
>> 3 in 4 have lactose intolerance (even if they are unaware)
>> 15% are unable to digest gluten (difficult to identify and often misdiagnosed)
>> 1 in 3 cannot tolerate fructose (often misread as other illnesses)
>> Up to 90% of Asians have dairy sensitivity
>> Inflammation caused by food toxins in nightshades, legumes and others is often missed - or misdiagnosed.
Which intolerance? ... (You can't tell from symptoms alone)
It would be convenient if a certain group of symptoms meant a particular intolerance. But that's not the case.
Food toxins act together in various ways to damage cells and provoke the immune system. Our eighteen years of experience has found the best results arise from reducing a selection of food toxins - the Low Toxin diet
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- Last Updated on Saturday, 23 October 2021 12:09
Clinical Testing for Food Toxin Sensitivity
Types of Testing to Detect Food Sensitivity
While Clinical tests for food sensitivity can give minute detail, they frequently return 'inconclusive' results. Therefore you may need to have several types of test before the doctor can suggest possible causes of your symptoms. But there is one method which gives accurate results first time, every time - the Journal Method.
Click video for explanation of types of testing.
Types of Clinical Tests Used By Your Doctor
It is our mission to help you understand FOOD TOXINS and learn how to reduce them in your diet. We recommend using a Journal - as in foodintol® LoTox Living.
Of course there are clinical tests with your doctor. However - no single test can conclusively identify all your food intolerances. To get a postive diagnosis you will need a series of different tests - from which your doctor will build up a fuller picture of your situation. Your medical doctor (GP) may use:
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- Several kinds of blood tests
- Hydrogen breath testing*
- Allergy testing (e.g. by skin pinprick method)
- Gastroscopy (tube guided into stomach while under anaesthetic)
- Endoscopy - checking for signs of intestinal damage linked to food intolerance
- Intestinal biopsy (small tissue sample taken under anaesthetic)
- Stool (faecal) analysis - DNA testing
- Skin sample analysis (e.g. with flaking skin infections)
- Genital swab (e.g. for fungal conditions)
*No longer practised by many doctors who cite unreliability.
A naturopath or alternative medicine practitioner may use:
-
- Iridology (diagnosis by looking into the iris of the eyes)
- Examination of eyes, skin, tongue and pulses
- Vega testing (small electrical currents sent through person and food)
- Reflexology - pressing on soles of feet
- Other methods
RESEARCH & REFERENCES
All foodintol® information is based on research from peer-reviewed medical journals
Learn how to avoid food toxins - and start feeling good again.
Tap into our 24 years of experience - with step-by-step programs, books and videos at foodintol®LoTox
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