Jeffrey Salazar
An elimination diet for IBS is a highly restrictive diet that aims to identify foods that trigger symptoms and remove them from your diet. It is a temporary eating plan that can be challenging and should not be followed for an extended period without supervision. Before starting, it is important to get tested for celiac disease, as the blood test is only accurate if you are still consuming gluten. Elimination diets require you to pay close attention to the foods you are eating and the symptoms you experience. The low-FODMAP diet is often recommended for people with IBS, as it eliminates certain sugars that may cause intestinal distress. This diet is very restrictive and should be done under the supervision of a doctor or dietitian.
| Characteristics | Values |
|---|---|
| Goal | Identify and eliminate foods that trigger or worsen IBS symptoms |
| First steps | Make a list of foods that may worsen IBS, such as fiber, chocolate, coffee, and nuts. |
| Elimination period | Eliminate suspected foods from the diet for 2-8 weeks. Some sources suggest 12 weeks. |
| Reintroduction | Gradually reintroduce eliminated foods one at a time, starting with small portions. |
| Monitoring | Keep a food journal to track the foods eaten, symptoms, and other factors such as stress levels. |
| Professional guidance | Consult a registered GI dietitian or a doctor with experience in IBS treatments. |
| Diet type | Low FODMAP diet: Eliminate certain sugars and carbohydrates that may cause intestinal distress. |
| Diet duration | Temporary, not meant to be followed for an extended period. |
| Diet risks | Risk of nutrient deficiencies and disordered eating if followed long-term without supervision. |
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What You'll Learn
Identify trigger foods
The goal of an elimination diet is to identify and eliminate foods that trigger or worsen IBS symptoms. Elimination diets are used as a tool to gather information about your body's reactivity to certain foods or FODMAP types.
The first step is to make a list of foods that you think may be worsening your IBS. If you are unsure, start with fibre, chocolate, coffee, and nuts. Eliminate one food item at a time for a period of 2-8 weeks. If you notice an improvement, you may want to continue avoiding that food. If there is no change after 12 weeks, reintroduce the food and move on to the next food item.
It is important to keep track of the foods you are eating and your symptoms. You can do this with a notebook or an online tracking app. This will help you identify trigger foods and create a personalised diet that is nutritionally dense and includes a wide variety of foods.
The low-FODMAP diet is a well-researched elimination diet for managing IBS symptoms. FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, which are types of carbohydrates that may be difficult to digest for some people. The initial phase of the low-FODMAP diet involves eliminating all high-FODMAP foods for 2-4 weeks, followed by the gradual reintroduction of FODMAP foods one by one.
It is important to consult with a doctor or dietitian with experience in IBS treatments before starting a restrictive elimination diet. Elimination diets may be unsuitable for certain people, such as those with a history of eating disorders or those at risk of nutrient deficiencies.
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Keep a food journal
Keeping a food journal is an essential part of an IBS elimination diet. This is because it helps you to identify any trigger foods that may be causing your IBS symptoms. It is recommended that you keep a running account of what foods you are eating, your symptoms, and any other factors that may be contributing to your symptoms, such as stress levels or your menstrual cycle. You can do this using a simple notebook or an online tracking app.
In your food journal, you should make a list of foods that you think may be worsening your IBS. Common triggers include fiber, chocolate, coffee, and nuts, but triggers vary from person to person. It is important to eliminate these foods from your diet one at a time for a period of around 12 weeks to see if your symptoms improve. If you do not notice any improvement after 12 weeks, you should reintroduce that food and try eliminating another food on your list.
If you are unsure which foods are bothering you, you can start with common allergens like dairy, gluten, eggs, and soy. You should also make a note of your portion sizes in your food journal. You may find that your body can tolerate certain foods in small portions but has more trouble with larger portions.
Once you have identified which foods trigger your IBS symptoms, you can avoid them in your diet and return to eating a varied diet of non-triggering foods. It is important to remember that an elimination diet is not meant to be followed for an extended period of time, and you should always consult a doctor or dietitian before making any dietary changes.
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Reintroduce foods
The reintroduction of foods is a critical phase of an IBS elimination diet. The goal of this phase is to gradually reintroduce eliminated foods one by one to identify which foods trigger IBS symptoms. This process allows individuals to curate a diet that is varied, nutritionally dense, and free from aggravating factors.
During the reintroduction phase, it is essential to monitor symptoms closely. After eliminating a suspected trigger food for a period, typically 12 weeks, individuals can start by reintroducing one food item at a time. If symptoms reoccur or worsen with the reintroduction of a particular food, it is identified as a trigger, and that food can be avoided in the future.
For those following a low-FODMAP diet, the reintroduction process involves assessing tolerance for different FODMAP types one at a time. FODMAPs are fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, which are short-chain carbohydrates that some individuals find difficult to absorb. The initial phase of the low-FODMAP diet involves eliminating high-FODMAP foods for 2 to 8 weeks, after which individuals can begin reintroducing FODMAP foods gradually.
It is important to approach the reintroduction phase with a calm and relaxed mindset. Stress can negatively impact digestion, potentially leading to bloating, gas, and fermentation. Working with a healthcare professional or a dietitian during this phase can help alleviate anxiety and ensure a balanced and nutritious diet.
Additionally, it is worth noting that the reintroduction of foods may not always lead to a noticeable improvement in symptoms. If eliminating a suspected trigger food does not yield positive results, it may be advisable to discontinue avoiding that food and focus on other dietary approaches or triggers.
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Consult a dietitian
Consulting a registered dietitian nutritionist is always recommended before starting an IBS elimination diet. Dietitians can provide guidance and supervision to ensure that you are maintaining proper nutrition and not putting yourself at risk of nutrient deficiencies or disordered eating. This is especially important if you plan to follow a restrictive elimination diet, such as the low FODMAP diet, which eliminates many foods and can be challenging during the first, most restrictive phase.
Registered dietitian nutritionists can help you identify which foods to eliminate based on your specific issues and ensure that you are still getting a wide variety of foods in your diet. They can also provide advice on portion sizes, as you may find that your body can tolerate certain trigger foods in small portions. This can help you enjoy some of your old food favourites while still managing your IBS symptoms.
It is also important to consult a dietitian if you plan to be on an elimination diet for an extended period of time. Elimination diets are meant to be temporary, and dietitians can help monitor your progress and make adjustments as needed to ensure that you are not on the diet for longer than necessary.
Additionally, dietitians can provide support and expertise in creating meal plans and preparing meals in advance, which is crucial to staying on track with your elimination diet. They can also help you identify other factors that may be contributing to your IBS symptoms, such as stress or your menstrual cycle, and provide guidance on managing these factors.
Overall, consulting a dietitian is a crucial step in starting an IBS elimination diet to ensure that you are doing so in a safe, effective, and nutritionally balanced manner.
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Avoid long-term elimination diets
An elimination diet is a tool to help identify and eliminate foods that trigger or worsen IBS symptoms. It is not a traditional diet, but a way to systematically find out if certain foods are causing symptoms in your body. Elimination diets are highly restrictive and are not meant to be followed long-term.
The low FODMAP diet, for example, is a temporary eating plan that is very restrictive. It eliminates many foods, including nutritious vegetables, fruits, and whole grains. It is meant to be followed for a short period, typically two to eight weeks, and then FODMAP foods are gradually reintroduced one by one. This diet is challenging and should be done under expert guidance to ensure it is followed correctly.
Similarly, the 12-week elimination diet for IBS suggests eliminating one suspected food offender at a time for 12 weeks. If there is no improvement after 12 weeks, there is no point in continuing to avoid that food. It is recommended to consult with a registered GI dietitian when making dietary modifications for IBS.
Overall, elimination diets are meant to be used as a tool to identify trigger foods, and the ultimate goal is to create a diet that includes a wide variety of foods while avoiding those that aggravate IBS symptoms. It is important to pay close attention to the foods you are eating and monitor your symptoms during an elimination diet. However, they are not meant to be followed long-term, and the focus should be on creating a sustainable, nutritionally dense diet that manages IBS symptoms effectively.
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Frequently asked questions
An elimination diet for IBS involves identifying and removing foods that trigger symptoms. The aim is to create a personalised diet that is nutritionally dense and includes a wide variety of foods.
First, make a list of foods that you think may worsen your IBS. Common triggers include fibre, chocolate, coffee, nuts, gluten, dairy, eggs and soy. Eliminate one of these foods from your diet for 2-8 weeks. If you notice an improvement, gradually reintroduce the food in small portions and monitor your symptoms. If not, there is no point in continuing to avoid that food.
The low-FODMAP diet is a highly restrictive diet that eliminates certain sugars and short-chain carbohydrates that may cause intestinal distress. It is designed to help people with IBS identify which foods trigger symptoms such as cramping, gas and diarrhoea. It is recommended that you consult a doctor or dietitian before starting this diet.
