Food Intolerance, Diagnosis, And Treatment

food intolerance

Table of Contents

Food intolerance is a digestive system reaction to a food or substance frequently mistaken for a food allergy. It is believed that approximately 15% of the developed world’s population suffers from food intolerance. 

Food intolerance diagnosis can be difficult. It frequently requires exclusion or elimination diets, in which particular foods are removed from the diet and then reintroduced to evaluate how the body reacts. 

Keeping a food diary helps you identify foods that cause food intolerance symptoms. Testing, such as blood tests or skin prick tests, may be required in some circumstances.

Food intolerance treatment relies on avoiding the problematic food or substance. This can be problematic because food intolerances differ from person to person and are sometimes difficult to recognise. 

People with food intolerance can find relief from their symptoms and enjoy a healthy and varied diet with the correct diagnosis and treatment plan.

What Are The Symptoms Of Food Intolerance?

Food intolerance symptoms can vary from person to person depending on the specific food that caused the reaction. Some common symptoms include:

food intolerance
  • Digestive problems like gas, bloating, abdominal cramps, diarrhoea, or constipation 
  • Skin problems such as hives, eczema, or rash
  • Breathing problems like congestion, runny nose, or sneezing
  • Headaches and migraines
  • Fatigue and low energy
  • Irritability and mood swings
  • Joint and muscle pain
  • Difficulty concentrating

It is important to note that food intolerances can cause symptoms unrelated to the digestive system, such as headaches or joint pain. In addition, symptoms may not appear immediately after eating the food in question and may take several days to manifest.

These symptoms are not life-threatening and should not be confused with food allergies. Food allergies can cause immediate and severe reactions, such as anaphylaxis, that requires immediate medical attention.

Millions of people suffer from food intolerances each year. This can include anything from a minor reaction like nausea and diarrhoea to a potentially fatal allergic reaction. Cardiopulmonary resuscitation (CPR) may be required in severe food intolerances to help restore breathing and heart function. 

During CPR, the patient’s chest is compressed to deliver oxygen and restart the heart. You should contact a registered first aid provider if you do not know how to administer cardiopulmonary resuscitation.

What Are the Different Types of Adverse Food Reactions?

Food Allergy and Food Intolerance are two different types of adverse reactions to food. To differentiate between the two, let’s examine the differences:

Immune-Mediated (Food Allergy)Immune-Mediated (Food Intolerance)
A food allergy is an immune system response to a food protein that the body mistakenly deems harmfulFood intolerance is a reaction of the digestive system to food that is difficult for the body to digest
Symptoms appear quickly, usually within minutes or hours of eating the food you’re allergic toSymptoms may be delayed and may be less pronounced
May cause serious reactions such as anaphylaxisMay include gastrointestinal symptoms such as bloating, gas, and diarrhoea
Diagnosis by skin prick test, blood test, or oral foodDiagnosis by elimination diet or food challenge test
Treatment includes completely avoiding allergic foods and carrying adrenaline (injectable medication) in an emergencyTreatment may include removing harmful foods from the diet or using special supplements

It’s important to remember that some food reactions result from a mixture of variables. In contrast, others result from an underlying medical condition. If you think you are having a food reaction, you should see a doctor for proper diagnosis and treatment.

adverse food reaction diagram

Immune-Mediated (primary food allergy) can be further classified as follows:

  • IgE-mediated food allergy:

  •  The immune system produces specific antibodies called immunoglobulin E (IgE) in response to an allergenic food.
  • The most common example of this type of allergy is a peanut allergy, in which the individual’s immune system produces IgE antibodies against peanut protein.
  • Upon contact with peanuts, these IgE antibodies bind to cells called mast cells and basophils, causing them to release inflammatory chemicals like histamine.
  • Symptoms appear quickly, often minutes to an hour after eating the allergenic food and can include hives, swelling, and anaphylaxis.
  • Non-IgE food allergy:

  • The immune system produces other types of antibodies or immune cells in response to allergic food.
  • For example, with cow’s milk protein allergy, the individual’s immune system produces antibodies such as IgG or IgA in response to the cow’s milk protein. These reactions do not involve the release of histamine, and symptoms may be delayed, such as eczema, colic, and gastrointestinal symptoms (vomiting and diarrhoea).
  • Mixed IgE and non-IgE mediated food allergy:

  • As the name suggests, it combines IgE-mediated and non-IgE-mediated food allergies.
  • Some individuals with a peanut allergy may have both immediate symptoms, such as hives, and delayed symptoms, such as eczema.
  • Cell-mediated food allergy:

  • These types of allergies are caused by the T cells of the immune system.
  • These reactions are delayed and often take several days to manifest.
It’s worth noting that IgE-mediated and non-IgE-mediated food allergies are not mutually exclusive. Some people may experience symptoms that fall into both categories. A trip to the doctor is essential to get a good diagnosis and course of treatment for food allergies. It’s also important to note that some people are susceptible to IgE-mediated and non-IgE-mediated symptoms from their food allergies, classifying them as having a “mixed-type allergy.”

Non-Immune Mediated (primary food intolerance) can be further classified as follows:

  • Metabolic food intolerance:

  • Involves the deficiency or dysfunction of enzymes required for the digestion of certain foods.
  • Examples are lactose intolerance when the body lacks the enzyme lactase, which is needed to break down lactose (the sugar found in milk and milk products), and fructose intolerance, when the body cannot fully digest fructose (a sugar found in fruits, vegetables, and honey). 
  • Pharmacological food intolerance:

  • Involves a reaction to a pharmacologically active food or food additive rather than an immune response.
  • MSG symptom complex describes the adverse reactions some people have to monosodium glutamate (MSG), such as headache, flushing, perspiration, face pressure or tightness, numbness, dizziness, and palpitations. MSG is a flavour enhancer in various processed foods and several Asian cuisines.
  • Toxic food intolerance:

  • It is caused by a reaction to dangerous compounds that have been contaminated in food.
  • Two examples are ingesting inadequately preserved fish containing high amounts of histidine (which causes scombroid poisoning) or contaminated food or water (which causes food poisoning).
  • Other idiopathic and indefinite food intolerances:

  • Some food intolerances may not fit into these categories, and the cause may be unknown or unclear.
  • Examples include histamine intolerance, in which some people have difficulty breaking down histamine and experience symptoms such as hives, itching, and difficulty breathing, and salicylate intolerance, in which some people are sensitive to salicylates, causing symptoms such as hives, stomach cramps, and diarrhoea.

It’s worth noting that not everyone who has a food intolerance will experience symptoms after consuming the offending item. A food intolerance dietitian can identify these food intolerances. Some cases can be remedied by omitting offending foods from the diet or taking nutritional supplements.

Natural substances in foods that might cause food intolerances

Food consists of proteins, carbohydrates, fats, various nutrients, and several natural chemicals. Naturally occurring substances often add flavour and aroma to food, but they can cause food intolerance in some people. The following is a list of the ten most common food intolerances that natural substances in food can cause:
Natural substances in foods that might cause food intolerances Description
Lactose Some people have trouble digesting the sugar called lactose, which is found in milk and other dairy products. This can lead to uncomfortable side effects such as abdominal gas, bloating, and diarrhoea.
Vasoactive amines Such as tyramine, serotonin, and histamine are well-known migraine triggers in some people. They are found naturally in pineapples, bananas, grilled meats, vegetables, red wine, barrel-aged white wines, avocados, chocolate, citrus fruits, and matured cheeses. Amines can directly dilate small blood vessels. This may explain why they can cause flushing, migraines, and nasal congestion.
Gluten A protein found in rye, wheat, and barley can cause symptoms such as diarrhoea and abdominal pain in people with celiac disease or gluten sensitivity. 
Sulfites Sulfites are chemicals used as a preservative in some nuts, canned vegetables, and wine. Sulfites can trigger severe allergic reactions in some people, including hives, difficulty breathing, and even death.
Fructose Sugar in fruit and some sweeteners can cause symptoms such as gas, bloating, and diarrhoea in people with fructose malabsorption.
Histamine A substance in fermented foods, aged cheeses, and processed meats can produce histamine intolerance symptoms such as hives, itching, and swelling. Both caffeine and curry are bowel stimulants and can cause indigestion in some people. It is important to understand that reactions to these substances do not cause allergies.
Salicylates It is a natural chemical found in many fruits, vegetables, herbs, and nuts that can cause symptoms such as headaches, asthma, allergy (hives), and stomach pain in people sensitive to salicylates.
Monosodium glutamate (MSG) It is a flavour enhancer in some processed foods that can cause headaches, flushing, sweating, and numbness in some people.
Irritants Caffeine and curry are both gastrointestinal and bowel stimulants, which might aggravate stomach upset in certain people. Simply put, allergies are not caused by responses to these substances.
Sulphite intolerance Some people may have an intolerance to sulfites, which are preservatives found in many processed foods. Symptoms include hives, difficulty breathing, and abdominal pain.
It is vital to note that not everyone will react to these natural substances. Food intolerance can be dose-dependent, meaning that a person can tolerate small amounts of food or substance but not large amounts.

A consultation with a food intolerance specialist or food intolerance dietitian can also help determine if a food intolerance exists and develop a management plan.

What Causes Sudden Food Intolerance In Adults?

Food intolerance is a general term that includes foods to which you are sensitive. Reactions are more subtle; for example, you may feel tired or have leg cramps for a few hours after eating an unpleasant food. These are delayed food symptoms that occur over time.

New food intolerance doesn’t happen overnight. Still, it can feel like it came out of nowhere when you suddenly develop a reaction to a food you’ve been eating for a while. 

Sudden food intolerance in adults can be caused by several factors, including:
  • Food poisoning: Ingestion of contaminated food can cause sudden symptoms of food intolerance, such as nausea, vomiting, and diarrhoea.
  • Genetics: Some people may be genetically predisposed to certain food intolerances, such as lactose or gluten intolerance. 
  • Immunology: An abnormal immune response to certain foods can cause sudden intolerance. This may be due to changes in the gut microbiome or exposure to certain chemicals or pollutants. 
  • Gastrointestinal infections: Bacterial or viral infections of the gastrointestinal tract can cause sudden symptoms of food intolerance.
  • Increased stress: Stress can cause changes in the gut that can lead to sudden food intolerance symptoms. 
  • Hormonal changes: Hormonal changes that occur during pregnancy, menopause, or as a side effect of certain medications can cause sudden food intolerance symptoms.
  • Exposure to new foods: Introducing new foods to the diet can cause sudden food intolerance symptoms, especially if the person has a history of food allergies.
  • Leaky gut syndrome: It occurs when the intestinal wall is damaged, and undigested food particles can enter the bloodstream. This causes an immune response and sudden food intolerance symptoms.
  • Changes in gut bacteria: Changes in the gut microbiome due to antibiotics or other medications, poor diet, or other factors can cause sudden food intolerance symptoms. 
  • Environmental factors: Exposure to certain chemicals or pollutants can also cause sudden symptoms of food intolerance.
  • Psychological factors: Some people may develop sudden food intolerance symptoms due to psychological conditions such as stress or anxiety. It is important to note that several factors can cause sudden food intolerance symptoms. It is important to consult a doctor or allergist to determine the cause and develop an appropriate treatment plan.

How Food Allergy Is Inherited

Food allergies can be inherited through a phenomenon known as genetic predisposition. Here are some significant factors regarding the inheritance of food allergies:
  • Family history: People with a family history of food allergies are more likely to develop food allergies. This suggests a genetic component to the development of food allergies.
  • Genetic variations: Certain variations in genes that control the immune system can make a person more susceptible to food allergies. For example, variations in the gene that codes for the receptor protein that food allergens bind to can increase the likelihood of developing food allergies. 
  • Epigenetics: Epigenetics refers to how environmental factors can affect gene expression. Food allergies can be inherited by the way certain genes are expressed. For example, exposure to certain environmental toxins during pregnancy or early childhood can increase a child’s likelihood of developing food allergies.
  • Interaction of genes and environment: It is also possible that a combination of genetic and environmental factors increases the risk of developing food allergies.

Food allergies are more common in children and less common in adults. Some food allergies, such as milk, egg, and wheat allergies, may disappear in childhood.

It is important to note that even if a person has a genetic predisposition to food allergies, it does not mean they will develop food allergies. 

Environmental factors, such as exposure to certain food allergens and pollution, also trigger food allergies. It’s also important to note that not all food allergies are hereditary. Some can develop as a result of exposure to certain food allergens.

Food Allergy Affects Which Body Parts?

Food allergies can affect different body parts and lead to different symptoms. When determining which area of the body is affected by a food allergy, it is crucial to examine the following: food allergy

Gastrointestinal system: Symptoms of food allergies affecting the digestive system include abdominal pain, vomiting, and diarrhoea. These symptoms develop because the immune system reacts to the allergen by generating substances, such as histamine, that promote inflammation in the gastrointestinal tract.

Skin: Food allergies can induce skin symptoms such as eczema, urticaria, and angioedema. These symptoms result from the immune system’s reaction to the allergen, which involves the release of substances such as histamine that cause skin inflammation.

Respiratory system: Food allergies can produce respiratory symptoms, including trouble breathing, wheezing, and a runny nose. The immune system reacts to the allergen by generating substances, such as histamine, that induce inflammation in the airways, resulting in these symptoms.

Cardiovascular system: Food allergies can induce low blood pressure, a rapid heartbeat, and fainting. The immune system reacts to the allergen by creating molecules, such as histamine, that promote inflammation in the cardiovascular system, resulting in these symptoms.

Anaphylaxis: In extreme situations, a food allergy can induce a severe allergic reaction known as anaphylaxis, which can affect many body systems and be life-threatening if not treated.

Symptoms of an allergic reaction include:

  • Trouble breathing
  • Swelling of the face and throat
  • A high heart rate
  • A decrease in blood pressure

It is essential to remember that the severity of symptoms can vary significantly depending on the individual and the allergens to which they are allergic. Some individuals may experience relatively moderate symptoms, but others may develop severe allergic reactions.

Food Additives Vs Food Intolerance

Food AdditivesFood Intolerance
Chemical or substance added to food to improve taste, appearance, or preservationAn adverse reaction to certain foods or food components, usually caused by an inability to digest or process them properly
Regulated by the Australian Government and must be approved for human consumptionNot regulated by the Australian Government
It can be found in processed or packaged foodsIt can be found in any food
It can cause an allergic reaction in some individualsIt can cause a variety of symptoms, including digestive issues, headaches, and skin reactions
Some examples are artificial sweeteners, colours and preservativesSome examples are lactose intolerance, gluten intolerance and histamine intolerance

How Do Doctors Test For Food Intolerance?

Doctors may test for food intolerance using a variety of methods, including:

  • Skin prick test: A small amount of the suspected food allergen is placed on the skin, and a small prick is made through the allergen. If a raised, red bump (hive) appears, it may indicate an intolerance to that food.
  • Blood test: A blood sample is taken and analysed for antibodies to the suspected food allergen.
  • Elimination diet: The patient is asked to eliminate the suspected food from their diet for a while and then reintroduce it to see if symptoms return.
  • Food challenge test: The patient is given a small amount of the suspected food allergen in a controlled setting and monitored for symptoms.
  • Additional tests for food intolerance: It is crucial to emphasise that these tests have not been properly validated, and their results may be unreliable. Before undergoing any of these tests, it is best to consult a healthcare expert.Some of the additional tests are mentioned below:
  • Imupro food intolerance test: This antibody blood test determines intolerance to particular foods. The company Imupro offers the test, which is performed by drawing a small amount of blood from the patient.After collecting the sample, it is examined to determine the concentration of antibodies against a chosen food. The test results will show if the patient has any dietary intolerances.
  • Fit food Intolerance Test and Food intolerance breath test: Both these tests evaluate the level of gases produced by bacteria in the gut in response to certain foods. The company Fit provides both exams.

    The patient is asked to drink a tiny amount of a specified meal or food group before blowing into a bag or device to obtain a breath sample. After that, the gases in the breath sample are tested to assess the patient’s reaction to the food. The test results will show which foods the patient may be allergic to.

  • Kinesiology Food Intolerance Testing: Kinesiology testing for food intolerances, also known as “kinesiology muscle testing food intolerances”, is a form of alternative medicine that uses muscle testing to diagnose and treat health issues, including food intolerances.

    Kinesiologists believe that the body’s muscles provide insight into the body’s overall health and that testing the strength of specific muscles can reveal imbalances or issues related to food intolerance.The test is performed by asking the patient to hold a small amount of the food in question and then testing the patient’s muscle strength. A lower muscle response is thought to indicate an intolerance to this food.

  • Food Intolerance Test Boots: This is a finger-prick blood test provided by the company Boots that assesses the level of antibodies to specific foods.

    This test examines the level of antibodies present in response to particular foods. The test is carried out by drawing a little blood sample from the patient with a finger prick and analysing it to determine the level of antibodies to a specific list of foods. The test results will show which foods the patient may be allergic to.

  • Vega testing and hair analysis: Food intolerances can also be diagnosed using Vega testing and hair analysis. Electrodermal testing, or Vega testing, measures the skin’s electrical conductivity to identify potential food allergens. One possible indicator of food intolerance is the presence of poisons or minerals that can be detected by studying a hair sample.
  • Naturopath food intolerance testing: Naturopathic food intolerance testing is not scientifically validated, and the results may be unreliable.

    Naturopathic doctors may utilise a range of testing methods, such as blood tests, skin prick tests, and elimination diets, to determine which foods produce symptoms in a patient.

    Naturopaths may also utilise alternative therapies such as herbal medication, acupuncture, and dietary adjustments to lessen symptoms of food intolerances. Still, it is crucial to realise that these approaches are not scientifically validated, and their outcomes may need to be more trustworthy.

    It is important to remember that food intolerance can be challenging to identify. These tests only sometimes show clear results. To fully identify and treat food-related concerns, visiting a food intolerance clinic and speaking with a medical expert is crucial.

Food Intolerance Test

A food intolerance test is used to identify foods or food ingredients that may cause an adverse reaction in a person. These tests are often used to diagnose non-IgE food intolerances, which are different from food allergies.

Some common types of food intolerance tests include:

  • Elimination Diet: An elimination diet involves removing the suspect food from your diet for some time (usually several weeks) and observing changes in symptoms. Suppose symptoms improve after the food is removed and return after re-introduction. In that case, this may indicate an intolerance to that food. 
  • Challenge test: A challenge test involves reintroducing the suspect food into the diet under the supervision of a health care professional or on its own and observing symptoms.
  • Lactose tolerance test: Determines how much lactose a person can tolerate before symptoms of lactose intolerance appear. 
  • Hydrogen breath test: The amount of hydrogen gas exhaled is measured in this test after a person has consumed sugars like lactose, fructose, or glucose. High hydrogen levels indicate sugar malabsorption.
  •  IgG food intolerance test: This test measures IgG antibodies in the blood against different foods. Because the correlation between IgG antibodies and symptoms of food intolerance has yet to be established, this test is not generally accepted as a valid test for food intolerance. 
  • Stool test: This test is used to detect enzyme deficiencies or bacterial overgrowth that can cause malabsorption of certain foods.

It is important to note that although food intolerance tests can be used to identify possible food intolerance, they should not be used as the sole basis for diagnosis. A qualified healthcare professional (usually a nutritionist) must diagnose food intolerance based on symptoms, medical history, and other test results.

What is a Food Detective Food Intolerance Test Kit?

The Food Detective Food Intolerance Test Tool is a home testing kit for identifying food intolerances. The kit, which is available in Australia, is promoted as a means for people to test for food intolerances in the privacy of their own homes.

The test is carried out by collecting a small amount of blood via finger prick, evaluating the sample, and determining the level of antibodies to a predetermined list of foods.

The test results will show which foods the patient may be intolerant to.

However, there are a few things to consider before purchasing a food intolerance test kit:

  • It’s vital to remember that these tests have not been proven scientifically, and their outcomes might need to be more trustworthy.
  • Self-diagnosis of food intolerance is not advised. Before undergoing any of these tests, it is best to speak with a healthcare provider. The results should serve more as a roadmap for additional research than a final diagnosis.
  • A medical expert can treat the patient appropriately and rule out any additional reasons for the symptoms.
  • It’s also critical to be aware that the quality of some food intolerance tests may vary and that the TGA (Therapeutic Goods Administration) may not regulate them.
  • The following are some of the companies that might sell the Food Detective Food Intolerance Test Kit in Australia:
  • Food Detective
  • Allergenics
  • YorkTest
  • Bioceuticals
  • Bio-Health
  • link
  • BioMedica
  • BioTech
  • BioCeuticals

Please be aware that this is not a comprehensive list and that the brands listed here  may not be readily available where you live.

  • Before purchasing any home testing kits, looking for the ARTG (Australian Register of Therapeutic Goods) listing is imperative.

What Is The ARTG List?

All therapeutic items that may be supplied legally in Australia are recorded on the ARTG (Australian Register of Therapeutic Goods). The Therapeutic Goods Administration (TGA), the Australian government agency regulating therapeutic goods, is responsible for its upkeep.

Always check the ARTG list before purchasing any home test kit, especially those designed to detect food intolerances. This is due to the need for all medical products, including diagnostic test kits, to be listed in the ARTG before they can be delivered to Australia. This guarantees that:

  • The items are safe 
  • Of high quality, and 
  • Deliver as promised in terms of performance

Searching the ARTG with either the product’s or manufacturer’s name or the ARTG list number will reveal whether or not it is included in the ARTG. However, the TGA’s approval and inclusion on the ARTG indicate that the product has been evaluated and is of satisfactory quality.

Food Intolerance Blood Test

A blood test for food intolerance is a diagnostic test that evaluates the level of antibodies in the blood against specific foods. This test can detect an immunological response to certain dietary proteins, which may suggest food intolerance. The following are the most common blood tests for food intolerance:

  • IgG food intolerance testing: This test assesses the presence of IgG antibodies in the blood against various foods. Because no link has been demonstrated between IgG antibodies and food intolerance symptoms, this test is not widely considered a credible diagnostic for food intolerance.
  • Lactose intolerance test: Determines the amount of lactase (an enzyme that digests lactose) in the small intestine. Lactase deficiency can result in lactose intolerance symptoms such as bloating, gas, and diarrhoea.
  • Gluten intolerance test: This test detects the presence of antibodies against gluten in the blood, such as tissue transglutaminase (tTG) IgA or IgG. The test can aid in diagnosing celiac disease, an autoimmune illness that causes small intestine damage when consuming gluten.
  • Histamine tolerance test: Determines the amount of diamine oxidase (DAO) in the blood, an enzyme that breaks down histamine. Low DAO levels can cause histamine intolerance, a condition in which the body has difficulty breaking down histamine, resulting in symptoms such as headaches, hives, and flushing.
  • FODMAP intolerance test: FODMAP stands for “fermentable oligosaccharides, disaccharides, monosaccharides, and polyols.” These carbohydrates are difficult for some people to digest, causing symptoms such as bloating, gas, and diarrhoea. A FODMAP intolerance test can help determine which types of FODMAPs a person is intolerant to, allowing for a targeted elimination diet.
  • Fructose malabsorption test: Fructose malabsorption is a condition in which a person has difficulty absorbing fructose, a sugar found in fruit, honey, and some processed foods. This test can be done by measuring the level of hydrogen gas in your breath after consuming a fructose-rich solution. Elevated breath hydrogen levels may indicate fructose malabsorption. 
  • Carbohydrate intolerance test: This test measures the body’s ability to absorb certain carbohydrates such as lactose, fructose, and sucrose. This test can be done by measuring the level of hydrogen gas in the breath after consuming a carbohydrate-rich solution. Elevated breath hydrogen levels may indicate malabsorption of certain carbohydrates consumed.

Although food intolerance blood tests can be used to identify potential food intolerances, they should not be utilised as the sole basis for diagnosis. A skilled healthcare expert (typically a dietitian) must make a correct diagnosis of food intolerance based on a combination of symptoms, medical history, and other test results.

Food Intolerance Supplements

Food intolerance supplements help people with food intolerances manage their symptoms. These supplements may contain enzymes, probiotics, or other compounds to help with food digestion. 

For example, a person with lactose intolerance may take a lactase supplement to assist them in digesting dairy items. It’s crucial to remember that these supplements aren’t a replacement for avoiding problematic food, and you should always contact a doctor before taking any food intolerance pills. 

Some supplements may interfere with drugs or cause other negative effects; a healthcare expert can advise you on whether a supplement is good for you and how to use it safely. These supplements are classified as follows:

  • Enzyme supplements: Enzymes in these supplements aid in the digestion of specific foods. For example, a person with lactose intolerance may take a lactase supplement to assist them in digesting dairy items.
  • Probiotic pills: Include helpful microorganisms that can promote gut health and aid in the digestion of specific meals.
  • Herbal supplements: These supplements may contain herbs known to have anti-inflammatory qualities and may aid in the reduction of symptoms associated with food intolerances.
  • Vitamin and mineral supplements: Some dietary intolerances can cause nutrient deficiencies, which a healthcare expert can treat with a vitamin or mineral supplement.

The Therapeutic Goods Administration (TGA) regulates food supplements in Australia. They must be listed on the Australian Register of Therapeutic Goods (ARTG) before they can be sold. This indicates that the TGA has reviewed the safety and efficacy of food intolerance supplements offered in Australia and determined that they meet an acceptable standard.

The TGA may not regulate some food intolerance supplements, and their quality may vary. As a result, before purchasing any supplements, look for the ARTG listing.

Does Food Intolerance Lead To Weight Gain?

Weight gain can occur if food intolerances force people to consume more calories than they burn. Food intolerance can cause weight gain in the following ways:

  • Substitute food: People who restrict their diets may wind up eating more of other, less healthful foods that are heavy in calories or bad fats. For instance, a person with gluten intolerance may replace gluten-containing foods with processed gluten-free equivalents that are heavy in calories and sugar, which may contribute to obesity.
  • Overeating: When you have a food intolerance that causes discomfort or bloating, you may overeat to alleviate the pain. Suppose you have a gluten intolerance and eat meals that include gluten. In that case, you may experience bloating, stomach pain, and diarrhoea, which may lead you to eat more than usual to feel better.
  • Inflammation: Weight gain may be attributed to inflammation brought on by food intolerances. Appetite-controlling hormones like leptin and ghrelin can be impaired by inflammation. Hunger and cravings for high-calorie meals may increase as a result, which may lead to weight gain.
  • Hormonal imbalances: Some dietary intolerances can cause hormonal imbalances, making it difficult to maintain a healthy weight. An imbalance in appetite-regulating hormones like insulin, for instance, might contribute to weight gain if someone is intolerant to dairy products.
  • Malabsorption: A person with food intolerance may not be able to digest certain foods, which can result in a lack of absorption of nutrients and an increase in body mass. Nutrient deficiencies, which can lead to weight gain, can occur if a person cannot absorb important nutrients from their food.
  • Emotional eating: Food intolerance-related emotional distress can lead to emotional eating, contributing to weight gain. Emotional eating is a common coping mechanism for people with food intolerances since they feel deprived when they can’t eat the foods they enjoy.

It’s important to remember that not everyone will gain weight due to food intolerance and that the degree of weight gain may vary depending on the person’s diet and lifestyle. Dietitians and doctors can help you figure out what foods you can safely eat by testing your blood and urine.

Where Can I Get A Food Intolerance Test?

A food intolerance test can be done in numerous different ways. The following are some options for obtaining a test for food intolerance:

  • See a doctor or allergist: A doctor or allergist can perform a physical exam and take a medical history to determine if a food intolerance may be causing your symptoms. They may also order blood or skin prick tests to check for allergies to certain foods.
  • See a naturopathic or functional doctor: Naturopathic and functional doctors may offer food intolerance tests, such as the IgG food antibody test, which measures the body’s immune response to different foods.
  • Home Food Intolerance Tests: Several companies offer home food intolerance tests that can be ordered online. These tests usually involve taking blood, saliva, or stool samples and sending them to a laboratory for analysis.
    However, it is important to note that some of these home tests may not be as accurate as tests performed by a doctor or allergist.
  • Talk to a Dietitian or doctor about elimination diets: An elimination diet is a process of removing certain foods from your diet for some time, then reintroducing them one at a time to watch for symptoms. This can be done under the guidance of a Dietitian or doctor.

It is important to note that the accuracy and reliability of food intolerance tests can vary, and a positive test result does not necessarily mean a person has a food intolerance. It is best to consult a healthcare professional before making changes to your diet based on test results.

Food Intolerance Test Near Me

If you are looking for a food intolerance test near me, you should use Google search. You can select the test that suits you best with just a few mouse clicks.

When finding a food intolerance test in your area, there are a few things to consider.

  • First, you must ensure the test is comprehensive and tailored to your needs.
  • Besides looking for a comprehensive test, you need to ensure that the test is easy. For example, a breath test for food intolerance is much simpler than a blood test. All you have to do is breathe into a tube, and the results are ready in minutes.
  • Not all food intolerance tests are created equal. A reliable food intolerance test uses state-of-the-art technology to measure your intolerance levels accurately. You can trust the results and be confident in your dietary changes.

Can Asthma And Pollen Allergies Lead To Food Intolerance?

Food intolerances have been linked to asthma and pollen allergies. When the immune system is already on high alert owing to asthma or a pollen allergy, it is more vulnerable to further stimulation and may induce an adverse reaction. Some persons with asthma or a pollen allergy may also develop gastrointestinal symptoms similar to food intolerance. On the other hand, asthma and pollen allergies are not the same as food intolerances and require specific diagnosis and treatment.


Food intolerances can be difficult to manage, but there are steps you can take to reduce your risk of developing an allergic reaction. A first aid course from a licensed first aid provider can help you recognize the signs and symptoms of food intolerance and how to prepare for an emergency.

It is also important to keep a food diary to track any symptoms after consuming certain foods. This can help you identify problem foods and any triggers that may be causing your food intolerances.

If you work in the childcare business or are a parent, the childcare first aid course is crucial for both your career and your role as a parent. The course teaches participants the basic skills to respond to emergencies, accidents, and child injuries. It also covers topics such as food intolerances and allergic reactions.

Childcare first aid course provides participants with the knowledge and skills to provide first aid to children. This may include basic first aid such as life support, treatment of unconscious victims, choking, and CPR. 

It also covers more specific areas, such as minor injuries and illnesses, environmental emergencies, food intolerances, allergic reactions, and the use of automated external defibrillators (AEDs).

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