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Expert food sensitivity dietitian Joan Breakey

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FODMAPS not the whole story

August 17, 2011 by Joan Breakey   Article

When you have tummy bloating, wind, looseness and discomfort, even pain, it can be very distressing. You will have had medical care to make sure there is nothing very worrying needing further treatment. People with these symptoms often have IBS – irritable bowel syndrome. IBS can interfere greatly in how you run your life. You may be worried about being out of your house for extended time, or realise that whenever you eat out you often seem to have gut problems as a result.

FODMAPS is the name given to various small carbohydrate molecules, including fructose. If the intake of these is greater than the person can absorb at the time they ferment in the gut and can be one of the reasons for these annoying symptoms.

A diet low in these compounds can be a very useful treatment where diagnosis of fructose intolerance has been made. And in some with IBS it will reduce the discomfort of bloating and the other symptoms. The fructose overload is often described as “fructose intolerance”, and now described by some as “food intolerance”.

However the FODMAPS diet is not the full story of food intolerance and IBS. It is ‘the new kid on the block’ where diet and IBS is concerned.

Many people already know their IBS symptoms are worse after rich meals, which restaurant meals often are, or after meals with herbs or spices, Asian meals, or particular foods such as tomato, capsicum, or peppermint. This is more likely to be food chemical intolerance than FODMAPS intolerance.

Since the 1980s a diet low in additive colours, flavours and preservatives as well as natural chemicals, such as amines, salicylates and glutamates, has been used for IBS with good results when people suspected food sensitivity. When the FODMAPS diet is used it also reduces many of these chemicals. The low chemical diet has also been shown to be useful for many other symptoms that food sensitive people have such as migraine or eczema. The symptoms that respond to a low chemical diet may improve symptoms in many parts of the body, not just the gut. In IBS it is reported to reduce the crampy pain, and gut urgency which may be accompanied by the range of discomfort through to pain.

When FODMAPS was first suggested for IBS symptoms it was a specified diet based on the gut function. Now those working with IBS are commenting on supersensitivity to pain with gut change especially bloating distension, particularly related to the gut brain connection. They also now talk of individual variation in tolerance. These ideas have been useful for a long time in those working with the food sensitive people who have a variety of symptoms not just IBS.

There is a need for more research into which reactions are due to FODMAPS and which are due to food chemical intolerance. If you fill out a Family Sensitivity History which shows all the suspect food sensitivities the three generations in your family you can see whether food chemical intolerance is more likely or not. See Are You Food Sensitive? for details.

Whether we begin with a food chemical elimination diet or a low FODMAPS diet we have reduced many of the foods likely to cause reactions. It is by doing challenges or trialling foods one at a time that we can see what may be causing the reactions. If reactions to fruit occur we would not know if it is fructose or salicylates but if the reaction is to pears which are very low in salicylates fructose is the likely culprit. If reactions are to herbs or spices, capsicum, or tea, added to either diet the reaction is to salicylates. APDs can advise on high FODMAPS foods to also trial.

If you are sensitive to FODMAPS foods you will still have your own pattern of foods containing FODMAPS. Another confusing aspect is that food intolerant people can react to particular whole foods such as eggs, that are not high in suspect chemicals, or FODMAPS, nor come up as positive with allergy tests. Other suspect foods are dairy and wheat. But the reaction to dairy may not just be lactose intolerance, nor the wheat one to the FODMAPS fractions. Attending to different types of fibre or using probiotics or prebiotics are other factors that may need attention. For all these reasons, and because FODMAPS intolerance and food chemical intolerance can occur together, it is a good idea to give yourself the help of an Accredited Practicing Dietitian.
So the idea of doing what I call diet detective work is still the best way to gradually understand what is happening. A key idea understood as part of the Diet Detective Process is that of individual variation in tolerance. If you are food sensitive you will find that you have your own particular tolerances. See Are You Food Sensitive? for more information on understanding how to find the foods you personally tolerate.

Categories: FODMAPS, Irritable Bowel Syndrome (IBS) 8 Comments

Comments

  1. Julia Hall says

    February 16, 2014 at 1:44 am

    Thank you very much for this. I have only just cottoned on to the importance of avoiding onion and garlic – and am feeling much more confident about my chances with the FODMAP diet now – but I know I have some other sensitivities going on as well – and that’s what’s so hard for some to understand. Thank you again.

    Reply
  2. Wendie Osborne says

    January 17, 2014 at 5:00 am

    I am so pleased to have read this as I was about to have an appointment with a dietician specializing in FODMAP work. Since I started my own experiments again, I have realized that my problem is that I can only eat very very small amounts of anything at one time so as to avoid pain. eg 1 ryvita or 1/2 ryvita with small amount of topping. Trapped wind is what I am finding to be the culprit so I am eager to find out why the chemistry or physicallity of my body does not allow me to eat as others do without this build up of gas. I have found doing my experiments most helpful. When I see other people enjoying a meal and never complaining of pain, I really wonder what on earth is wrong with me so I am thinking I am on track with some answers now. Kind Regards to Joan and readers.

    Reply
    • joan says

      January 25, 2014 at 6:57 am

      Dear Wendie, Yes you are right to experiment with food. As part of diet investigation you can try to identify whether the gas is high in your stomach area or if it is down lower. I presume you have discussed your symptoms with your doctor to check if there are medical investigations that should be done. These will clarify whether or not there is some other medical problem present. Many food sensitive people do note that size of the meal matters. Another factor that makes a difference in some is just how dense a food is. A plain biscuit may be tolerated but a more dense one [such as a shortbread] cause gut pain. Your dietitian is also likely to suggest sips of water with all bites of food to make sure that the food is well mixed with the gut enzymes and gut bacterial flora, so that food progresses through the gut as it should. There are other factors that we could call “The Layer Underneath” to attend to. These include foods that cause wind in some people and not in others, and foods that affect the amount of pain you get. Your dietitian is likely to ask you to fill out a Family Sensitivity History which shows what food sensitive symptoms you have and those your immediate family have, as well as all the foods, and environmental factors, that they suspect are causing symptoms. It is worth having the help of a dietitian as diet investigation can seem complex but it can be managed. You will be so relieved when you have investigated diet and found what is causing you such upsetting symptoms. I wish you well in your “diet detective work”. Joan

      Reply
  3. elle says

    September 11, 2013 at 11:26 am

    This is very interesting. I’m struggling with IBS (C) now and it’s so frustrating! I try to stick to a Low FODMAP diet but still seem to react and have continuing symptoms. I will try to find an experienced dietitian in Sydney. Can you recommend anyone?

    Reply
    • MazTerGee says

      June 19, 2017 at 11:40 am

      Don’t forget to also try eliminating high Salicylate and Amine foods too.

      Reply
      • joan says

        August 28, 2017 at 12:14 am

        Thanks Elle, You are adding to the emphasis that the article was making. Nowadays dietitians can get information on managing the combined diet where bloating and wind are present, as well as cramping pain, urgency and discomfort when passing a bowel motion, not to mention other symptoms. See the comment on the Articles section of my site under IBS Are you FODMAPS or food chemical intolerant from your type of pain”
        https://foodintolerancepro.com/category/irritable-bowel-syndrome/are-you-fodmaps-or-food-chemical-intolerant/” IBS is complex but diet is helpful. Joan

        Reply
  4. Gail Taylor says

    September 6, 2013 at 9:58 am

    This is amazing and very helpful

    Reply
    • joan says

      September 9, 2013 at 1:01 am

      Dear Gail, thank you for your awareness that IBS is complex and that each person needs to work towards their own diet. Joan

      Reply

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Joan Breakey

Joan Breakey is the author of foodintolerancepro.com.  She is one of the few dietitians in the world who has a lifetime of specialisation in the area of Food Sensitivity. She is a  Dietitian, Home Economist and Teacher. In 1975 she began her first work on Diet and Hyperactivity, investigating the effects of the Feingold diet on children’s behaviour. For more than 45 years Joan has been writing books and articles, publishing and presenting the results of her ongoing research in this area.

Joan’s Latest Book

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