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What’s the difference between a food allergy and an intolerance?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/jennifer-koplin-13384">Jennifer Koplin</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/desalegn-markos-shifti-1530163">Desalegn Markos Shifti</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a></em></p> <p>At one time or another, you’ve probably come across someone who is lactose intolerant and might experience some unpleasant gut symptoms if they have dairy. Maybe it’s you – food intolerances are estimated to affect <a href="https://nutritionaustralia.org/fact-sheets/food-intolerances/#How-common-are-food-intolerance-reactions?">up to 25%</a> of Australians.</p> <p>Meanwhile, cow’s milk allergy is one of the most common food allergies in infants and young children, affecting around <a href="https://pubmed.ncbi.nlm.nih.gov/38992429/">one in 100</a> infants.</p> <p>But what’s the difference between food allergies and food intolerances? While they might seem alike, there are some fundamental differences between the two.</p> <h2>What is an allergy?</h2> <p>Australia has one of the <a href="https://theconversation.com/were-the-allergy-capital-of-the-world-but-we-dont-know-why-food-allergies-are-so-common-in-australian-children-228786">highest rates of food allergies</a> in the world. Food allergies can develop at any age but are more common in children, affecting more than <a href="https://pubmed.ncbi.nlm.nih.gov/38992429/">10% of one-year-olds</a> and <a href="https://pubmed.ncbi.nlm.nih.gov/38597846/">6% of children</a> at age ten.</p> <p>A food allergy happens when the body’s <a href="https://www.allergy.org.au/patients/immune-system">immune system</a> mistakenly reacts to certain foods as if they were dangerous. The <a href="https://pubmed.ncbi.nlm.nih.gov/24388012/">most common foods</a> that trigger allergies include eggs, peanuts and other nuts, milk, <a href="https://pubmed.ncbi.nlm.nih.gov/37375617/">shellfish</a>, fish, soy and wheat.</p> <p>Mild to moderate signs of food allergy include a swollen face, lips or eyes; hives or welts on your skin; or vomiting. A <a href="https://www.allergy.org.au/patients/fast-facts/food-allergy">severe allergic reaction</a> (called anaphylaxis) can cause trouble breathing, persistent dizziness or collapse.</p> <h2>What is an intolerance?</h2> <p>Food <a href="https://www.allergy.org.au/patients/food-other-adverse-reactions/food-intolerance">intolerances</a> (sometimes called non-allergic reactions) are also reactions to food, but they don’t involve your immune system.</p> <p>For example, lactose intolerance is a metabolic condition that happens when the body doesn’t produce enough lactase. This enzyme is needed to break down the lactose (a type of sugar) in dairy products.</p> <p>Food intolerances can also include reactions to natural chemicals in foods (<a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4604636/">such as salicylates</a>, found in some fruits, vegetables, herbs and spices) and problems with artificial preservatives or flavour enhancers.</p> <p>Symptoms of <a href="https://www.allergy.org.au/patients/food-other-adverse-reactions/food-intolerance">food intolerances</a> can include an upset stomach, headaches and fatigue, among others.</p> <p>Food intolerances don’t cause life-threatening reactions (anaphylaxis) so are less dangerous than allergies in the short term, although they can cause problems in the longer term <a href="https://www.foodauthority.nsw.gov.au/consumer/life-events-and-food/allergy-and-intolerance">such as malnutrition</a>.</p> <p>We don’t know a lot about how common food intolerances are, but they appear to be <a href="https://www.foodauthority.nsw.gov.au/consumer/life-events-and-food/allergy-and-intolerance">more commonly reported</a> than allergies. They can develop at any age.</p> <h2>It can be confusing</h2> <p>Some foods, such as <a href="https://pubmed.ncbi.nlm.nih.gov/33510829/">peanuts and tree nuts</a>, are more often associated with allergy. Other foods or ingredients, such as caffeine, are more often associated with intolerance.</p> <p>Meanwhile, certain foods, such as cow’s milk and wheat or gluten (a protein found in wheat, rye and barley), can cause both allergic and non-allergic reactions in different people. But these reactions, even when they’re caused by the same foods, are quite different.</p> <p>For example, children with a cow’s milk allergy can react to very small amounts of milk, and serious reactions (such as throat swelling or difficulty breathing) can happen within minutes. Conversely, many people with lactose intolerance can tolerate small amounts of lactose <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10708184/">without symptoms</a>.</p> <p>There are other differences too. Cow’s milk allergy is more common in children, though many infants will <a href="https://pubmed.ncbi.nlm.nih.gov/36185550/">grow out</a> of this allergy during childhood.</p> <p><a href="https://pubmed.ncbi.nlm.nih.gov/30388735/">Lactose intolerance</a> is more common <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC11155274/">in adults</a>, but can also sometimes be temporary. One type of lactose intolerance, <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10708184/">secondary lactase deficiency</a>, can be caused by damage to the gut after infection or with medication use (such as antibiotics or cancer treatment). This can go away by itself when the underlying condition resolves or the person stops using the relevant medication.</p> <p>Whether an allergy or intolerance is likely to be lifelong depends on the food and the reason that the child or adult is reacting to it.</p> <p>Allergies to some foods, such as milk, egg, wheat and soy, often resolve during childhood, whereas allergies to nuts, fish or shellfish, often (but not always) <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC7899184/">persist into adulthood</a>. We don’t know much about how likely children are to grow out of different types of food intolerances.</p> <h2>How do you find out what’s wrong?</h2> <p>If you think you may have a <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8152468/">food allergy or intolerance</a>, see a doctor.</p> <p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC7794657/">Allergy tests</a> help doctors find out which foods might be causing your allergic reactions (but can’t diagnose food intolerances). There are two common types: skin prick tests and blood tests.</p> <p>In a skin prick test, doctors put tiny amounts of allergens (the things that can cause allergies) on your skin and make small pricks to see if your body reacts.</p> <p>A blood test checks for allergen-specific immunoglobulin E (IgE) antibodies in your blood that show if you might be allergic to a particular food.</p> <p>Food intolerances can be tricky to figure out because the symptoms depend on what foods you eat and how much. To diagnose them, doctors look at your health history, and may do <a href="https://www.allergy.org.au/patients/food-other-adverse-reactions/food-intolerance">some tests</a> (such as a breath test). They may ask you to keep a record of foods you eat and timing of symptoms.</p> <p>A temporary elimination diet, where you stop eating certain foods, can also help to work out which foods you might be intolerant to. But this should only be done with the help of a doctor or dietitian, because eliminating particular foods can lead to <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4604636/">nutritional deficiencies</a>, especially in children.</p> <h2>Is there a cure?</h2> <p>There’s currently no cure for food allergies or intolerances. For allergies in particular, it’s important to strictly avoid allergens. This means reading food labels carefully and being vigilant when eating out.</p> <p>However, researchers are studying a treatment called <a href="https://www.allergy.org.au/patients/allergy-treatments/oral-immunotherapy-for-food-allergy">oral immunotherapy</a>, which may help some people with food allergies become less sensitive to certain foods.</p> <p>Whether you have a food allergy or intolerance, your doctor or dietitian can help you to make sure you’re eating the right foods.</p> <p><em>Victoria Gibson, a Higher Degree by Research student and Research Officer at the School of Nursing, Midwifery and Social Work at the University of Queensland, and Rani Scott-Farmer, a Senior Research Assistant at the University of Queensland, contributed to this article.</em><!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/243685/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/jennifer-koplin-13384">Jennifer Koplin</a>, Group Leader, Childhood Allergy &amp; Epidemiology, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/desalegn-markos-shifti-1530163">Desalegn Markos Shifti</a>, Postdoctoral Research Fellow, Child Health Research Centre, Faculty of Medicine, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a></em></p> <p><em>Image credits: Shutterstock</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/whats-the-difference-between-a-food-allergy-and-an-intolerance-243685">original article</a>.</em></p> </div>

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“Intolerable”: Leigh Sales speaks up about unwanted onstage kiss

<p><span>ABC journalist Leigh Sales has spoken up after receiving an unwanted kiss on the lips from a retired businessman in front of a charity dinner crowd.</span></p> <p><span>According to <em><a href="https://www.theguardian.com/world/2019/sep/02/leigh-sales-angered-unwanted-kiss-crowd-charity-dinner?CMP=Share_iOSApp_Other&amp;utm_content=buffer58594&amp;utm_medium=social&amp;utm_source=twitter.com&amp;utm_campaign=buffer">The Guardian Australia</a></em>, Sales was about to host the black tie dinner at the Hilton Hotel in Sydney on Saturday when she was introduced by Phil Newman, a retired businessman and a board director for the multiple sclerosis charity The Trish Foundation.</span></p> <p><span>Newman offered his cheek for Sales to peck but turned his head to connect his lips with Sales’ mouth. The <em>7.30 </em>host reportedly screamed in shock and said “hashtag me too” on the microphone before continuing to host the dinner. </span></p> <p><span>An audible gasp could be heard in the room, where the 200 guests included the former Liberal minister Brendan Nelson and the former premier of New South Wales Barry O’Farrell as the foundation’s joint patrons.</span></p> <p><span>“I was offended and angered by the incident on Saturday night,” Sales told <em>The Guardian Australia</em>. </span></p> <p><span>“I had strong words to the man involved, he apologised and I accepted that apology. That should be the end of it as far as I’m concerned.</span></p> <p><span>“The only reason I am commenting publicly is that given how many people witnessed the incident, I feel it would be gutless not to stand up and say that kind of behaviour is intolerable and the time for women being subject to it or having to tolerate it is long gone.”</span></p> <p><span>Newman said the kiss was “an attempt at humour and light entertainment” to start the event. </span></p> <p><span>“I apologised on the night profusely and she accepted,” he said. “I am upset my judgment wasn’t better. I am embarrassed I brought any disrespect on the foundation and on Leigh.”</span></p> <p><span>The chair of the Trish Foundation, Carol Langsford also apologised to Sales. “We are incredibly honoured that Leigh gives her valuable time and great professional skills to the Trish MS Research Foundation year after year,” Langsford said.</span></p> <p><span>“We are terribly upset that Leigh was embarrassed by one of our volunteers and of course, our volunteer and the Trish Foundation apologise sincerely and unreservedly.”</span></p>

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Is wheat really killing us?

<p>Having a gluten intolerance these days seems to be more of a fashion statement than a medical condition. With all this talk about “gluten free” making us feel guilty for reaching for that second slice of toast, we wanted to get to the bottom of the question on people’s lips; “Is what really killing us?”</p> <p><strong>Wheat versus gluten</strong></p> <p>Before we can explore this topic properly, we need to draw the clear distinction between gluten and wheat. Wheat is a type of grain that is used to make flour, bread, pasta, pastry, etc. Gluten is a mixture of two proteins that are found in wheat products. Having a wheat intolerance is a very serious allergy, that manifests in hives, nausea, headaches and even anaphylaxis. A gluten allergy, or “coeliac disease” on the other hand, is more of a digestive issue that results in gas, bloating, diarrhea or perhaps even fatigue and brain fog. These conditions are both able to be clearly diagnosed, so you might be wondering, how is there any conjecture around the topic? The confusion mainly lies in the diagnosis of non-coeliac gluten sensitivity.  </p> <p><strong>Non-coeliac gluten sensitivity</strong></p> <p>Nutritionist and lifestyle coach, Cyndi O’Meara, believes that non -coeliac gluten sensitivity (NCGS) is more prevalent than we know, and is the cause of many more health issues such as weight gain, brain fog, poor memory, metabolic issues, gastrointestinal issues, disturbed sleep patterns and the development of autoimmune diseases.</p> <p>“If someone has NCGS it can attack any part of the body” Cyndi explains.</p> <p>“The reason we know NCGS exists is that people who have not been diagnosed with a wheat allergy or coeliac still present with an array of symptoms when they continue to eat gluten and wheat. Those symptoms disappear on the cessation of consuming gluten and wheat”.</p> <p>Nutritional scientist and accredited practising dietitian, <a href="http://www.drjoanna.com.au" target="_blank"><strong><span style="text-decoration: underline;">Dr Joanna McMillan</span></strong></a>, has different thoughts on the matter. “We need more understanding and evidence in this area. The thing that gets ignored is, is the problem the wheat, or is the problem the gut to start with? So people who have not been having a good diet, or who were on anti-biotics as a child, or who for whatever reason do not have a healthy gut microbiome, are they then having problems digesting foods because of their gut flora. Therefore, something like gluten may be problematic”.</p> <p><strong>The science behind the symptoms</strong></p> <p>Ms O'Meara also says severe reactions to gluten come when there are existing problems in the digestive system, particularly “leaky gut syndrome”. This can be caused by a vitamin D deficiency that can prohibit gluten being broken down effectively.</p> <p>"It goes straight into the system and the body sees it as an enemy, so it creates this immune response as basically an allergy, intolerance or sensitivity."</p> <p>Her initial findings are based on her own rigorous research in which she ate organically for three weeks, and slowly started to re-introduce normal foods.  When she ate wheat again, she instantly experienced problems. </p> <p>“I believe that cutting out gluten and wheat and replacing it with high nutrient foods is possibly a good first step for many people to see if they are affected, and completely eliminating the food for six weeks or more is a good start”.</p> <p>Her worry also lies in the change of the production processes in modern wheat foods, that she says lead to weaker digestive systems.</p> <p>According to Cyndi, intolerances may very well be on the rise because of “the introduction of and the enormous increase from 1998 in the use of the herbicide Roundup on many of our foods, and wheat in pre-seeding. In some countries, and areas in Australia, Roundup is used as a desiccant. This herbicide not only kills the bacteria in the soil but stops the minerals from being taken up by the plant, leaving the plant devoid of nutrition”.</p> <p>Cyndi also explains that Roundup stops the making of amino acids in the gut, as well as B vitamins and neurotransmitters. It can also be associated with irritable bowel syndrome.</p> <p>Joanna however, is still convinced that wheat, as long as it is in whole grain form, has an overall positive impact on the average consumer’s health. </p> <p>“We’ve had two very large, big anthropological studies recently which have looked at whole grain intake, and they show very clearly that the more wholegrains people eat, the more they are protected from chronic diseases that are killing us, such as heart disease, several types of cancer, type 2 diabetes and obesity itself. If wheat was really harming all of us, we wouldn’t see great results from hundreds of thousands of people. We would only see an increase in sensitivity”.</p> <p>Joanna also has some strong thoughts about people cutting out gluten willy-nilly.</p> <p>“We are focusing so much on little details in our diet, and we want to look for sensational reasons for our bad health, but we’re ignoring the elephant in the room.</p> <p>“It’s not whole grain breads and pasta’s that are making us fat. It’s the biscuits and doughnuts. You can go buy a gluten free cake. It’s still cake”.</p> <p><strong>What bread is best?</strong></p> <p>Cyndi O’Meara suggests that, as long as you don’t have any allergies, NCGS, autoimmune diseases or coeliac disease, you can eat wheat. However, she says to be weary of just grabbing any old bread of the shelf.</p> <p>“I would be eating the heritage wheats such as Emmer Wheat, Einkorn or Kamut. I would also make sure they are organic and I would also ensure that they are prepared properly, as soaking, fermenting, and cooking are important for grains”.</p> <p>Dr Joanna McMillan partly agrees with this, saying that there is anecdotal evidence to suggest a certain number of people with general food sensitivities will do better with these traditional breads.</p> <p>However, she is careful to explain why more modern bread is different, and how gluten still isn’t to blame.  </p> <p>“The reason for people choosing particular varieties of wheat tends to be because farmers get the best harvest, they grow them best, and they produce the fluffy white bread that people want to eat... So there may have been nutritional changes in the production but it doesn’t have more gluten. So we can’t point the finger and blame gluten”.</p> <p>The general rule is that less-refined and over produced forms of all foods are better for us. So, if you don’t have a specialty baker nearby (or an exorbitant shopping budget) at least skip the wonder white in favour of wholegrain, whole-wheat and wholemeal breads.</p> <p><strong>The verdict</strong></p> <p>So, is wheat really killing us? Both Cyndi O’Meara and Joanna McMillan agree that the source of NCGS symptoms are due to existing problems in the gut, albeit if they differ on where these problems have originated from.</p> <p>It looks then that the real question is not then, if wheat is killing us, but if it is in fact the culprit that is weakening our digestive systems. Alternatively, this could be occurring widespread due to generally poor lifestyle decisions.</p> <p>Once you separate the scientific evidence from the anecdotal, it certainly looks like wheat is safe for the moment. However, that doesn’t mean we shouldn’t heed Cyndi’s warning. If your overall digestion is concerning you, opting for organic, less processed foods may be something you can explore. If you think you have a wheat or gluten intolerance, visit your GP for guidance so you can figure out next steps. However, don’t simply assume that you do. Before you and your health care professional start pointing the finger at gluten, cut back on the sugar, alcohol and take up a generally healthy lifestyle. It will be much easier (and cheaper) than adopting a gluten free existence anyway.</p> <p>What do you think about these views? Has it changed you view on the gluten debate? Let us know what you think in the comments below.</p> <p><strong>Related links:</strong></p> <p><a href="/health/body/2016/05/dangers-of-fad-dieting/"><strong><em><span style="text-decoration: underline;">7 surprising dangers of fad dieting</span></em></strong></a></p> <p><a href="/%20http:/www.oversixty.com.au/health/body/2016/05/foods-to-eat-to-beat-bloating/"><strong><em><span style="text-decoration: underline;">10 foods to eat to beat bloating</span></em></strong></a></p> <p><a href="/health/body/2016/03/signs-you-are-gluten-intolerant/"><em><strong><span style="text-decoration: underline;">10 signs you’re gluten intolerant</span></strong></em></a></p>

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10 signs you’re gluten intolerant

<p>More than 55 diseases have been linked to the consumption of gluten, the protein that is found in wheat, rye, and barley.</p> <p>It’s also estimates that a shocking 99 per cent of people that are gluten intolerant are undiagnosed.</p> <p>Don’t worry, just because a big slice of bread upsets your stomach, it doesn’t mean your necessarily gluten intolerant or coeliac. However, if you have a few of the symptoms below, it might be worth a thought or a trip to your GP. The next step is an “elimination diet” to determine your tolerances.</p> <p>1. Digestive issues such as gas, bloating, diarrhoea and even constipation.</p> <p>2. Keratosis Pilaris, (also known as “chicken skin” on the back of your arms). This tends be as a result of a fatty acid deficiency and vitamin A deficiency secondary to fat-malabsorption caused by gluten damaging the gut.</p> <p>3. Fatigue, brain fog or feeling tired after eating a meal that contains gluten.</p> <p>4. Diagnosis of an autoimmune disease such as Hashimoto's thyroiditis, Rheumatoid arthritis, Ulcerative colitis, Lupus, Psoriasis, Scleroderma or Multiple sclerosis.</p> <p>5. Neurologic symptoms such as dizziness or feeling of being off balance.</p> <p>6. Hormone imbalances such as PMS, PCOS or unexplained infertility.</p> <p>7. Migraine headaches.</p> <p>8. Diagnosis of chronic fatigue or fibromyalgia. These diagnoses simply indicate your conventional doctor cannot pin point the cause of your fatigue or pain.</p> <p>9. Inflammation, swelling or pain in your joints such as fingers, knees or hips.</p> <p>10. Mood issues such as anxiety, depression, mood swings and ADD.</p> <p><strong>Related links:</strong></p> <p><span style="text-decoration: underline;"><strong><em><a href="http://www.oversixty.com.nz/health/body/2016/02/is-coconut-water-good-for-you/">Is coconut water really good for you?</a></em></strong></span></p> <p><span style="text-decoration: underline;"><strong><em><a href="http://www.oversixty.co.nz/health/body/2016/02/pros-and-cons-of-going-vegan/">The pros and cons of a vegan diet</a></em></strong></span></p> <p><span style="text-decoration: underline;"><strong><em><a href="http://www.oversixty.co.nz/health/body/2016/02/understanding-diet-trends/">What you need to know about the latest diet trends</a></em></strong></span></p>

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