Jeffrey Salazar
Irritable bowel syndrome (IBS) is a gastrointestinal disorder that affects 5% to 10% of the population. While there is no one-size-fits-all approach to managing IBS, dietary changes can play a significant role in reducing symptoms. The low FODMAP diet, which involves reducing certain carbohydrates that are hard to digest, has been shown to be beneficial for many people with IBS. This diet can help identify food triggers and reduce symptoms such as cramping, gas, and diarrhoea. In addition to the low FODMAP diet, other dietary recommendations for IBS include increasing fibre intake, avoiding gluten, and limiting caffeine, alcohol, fatty foods, and spicy foods. It is important to work with a healthcare professional or dietitian to ensure that nutritional needs are met and that dietary changes are tailored to the individual.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Diet | Low FODMAP, gluten-free, caffeine-free, alcohol-free, low-fat, low-spice, high-fibre, low-fibre |
| Fluids | Drink 1.5 litres of water or herbal tea per day |
| Meals | Smaller, more frequent meals, eat slowly |
| Lifestyle | Regular exercise, manage stress |
| Medicine | Antibiotics, laxatives, low-dose antidepressants, peppermint oil, Buscopan |
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What You'll Learn
Try the low FODMAP diet
The low FODMAP diet is a specific approach to identifying and reducing foods that may be irritating your gut and causing gastrointestinal distress. FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides and polyols, which are short-chain carbohydrates that the small intestine absorbs poorly. These carbohydrates are poorly digested and can cause intestinal distress, bloating, gas, pain, and diarrhoea.
The low FODMAP diet is often prescribed as a temporary, restrictive eating plan to help manage IBS symptoms and give your digestive system a rest. It is important to note that this diet is not intended to be a long-term solution, but rather a way to help identify specific FODMAP triggers. During the elimination phase, you will avoid all high-FODMAP foods, including certain fruits, vegetables, grains, and proteins. For example, apples, watermelon, and stone fruits are high in FODMAPs, but grapes, strawberries, and pineapples are low in FODMAPs. It is important to be mindful of FODMAP stacking, which occurs when you eat several low-FODMAP foods in the same meal that contain similar carbohydrates, potentially triggering symptoms.
After the elimination phase, which typically lasts two to six weeks, you will begin the reintroduction phase, where you systematically add high-FODMAP foods back into your diet, one at a time, to determine which specific foods cause symptoms. If a particular food causes symptoms, it should be avoided long-term. The final maintenance phase is customised to you, keeping the foods that work and leaving out the ones that don't.
It is important to work with a doctor or dietitian to ensure you are following the diet correctly and maintaining proper nutrition. While the low FODMAP diet has a high predicted success rate for people with IBS, it may not work for everyone, and other therapies and diets are available.
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Avoid hard-to-digest foods
The low FODMAP diet is a popular dietary approach for people with IBS. FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, which are short-chain carbohydrates that the small intestine absorbs poorly. These carbohydrates are found in a variety of fruits, vegetables, and processed foods. Examples of high-FODMAP foods to avoid include apples, apricots, blackberries, cherries, mangoes, nectarines, pears, plums, watermelon, cabbage, broccoli, cauliflower, beans, onions, and products containing the sweetener sorbitol.
The low FODMAP diet is designed to help people with IBS identify which foods trigger their symptoms and which foods help to reduce them. It is a restrictive diet that eliminates many foods and should be followed under the guidance of a doctor or dietitian to ensure proper nutrition. This diet has been shown to reduce symptoms in up to 86% of people with IBS.
In addition to the low FODMAP diet, there are other dietary changes that may improve IBS symptoms. Consuming 25-30 grams of fibre per day and avoiding caffeine, alcohol, fatty foods, and spicy foods can be beneficial for some people with IBS. It is important to note that everyone's experience with IBS is unique, and there is no one-size-fits-all dietary approach. Keeping a food diary and working with a healthcare professional can help identify specific triggers and develop a personalized diet plan.
Some general tips for managing IBS through diet include varying meal timing and size. Many people with IBS find that eating smaller, more frequent meals reduces stress on the digestive tract. Additionally, slowing down during meals and practising mindful eating can reduce the amount of air swallowed, which may help alleviate IBS symptoms.
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Eat more fibre
Eating more fibre can help with IBS, but it's important to note that the amount and type of fibre you consume should be tailored to your specific needs and IBS type. The recommended daily fibre intake for adults is 25-30 grams, but this may vary depending on individual factors and the severity of your IBS symptoms.
Fibre is essential for maintaining regular bowel movements and a healthy digestive system. It adds bulk to stools, making them softer and easier to pass, which can help alleviate constipation. Fibre also promotes the growth of beneficial gut bacteria, which are crucial for maintaining a healthy gut environment and supporting digestion.
When increasing your fibre intake, it's important to do so gradually to give your body time to adjust. A sudden, significant increase in fibre consumption can lead to bloating, gas, and other digestive discomforts, which may exacerbate your IBS symptoms.
It's also worth noting that not all fibres are the same. Soluble fibre, found in oats, fruits, and legumes, dissolves in water and forms a gel-like substance in the gut. This type of fibre helps to soften stools and can be particularly beneficial for those with constipation-predominant IBS. Insoluble fibre, on the other hand, is found in whole grains, nuts, and vegetables, and it adds bulk to stools, aiding in the movement of waste through the digestive tract. While insoluble fibre can be beneficial for some, it may be triggering for those with IBS who experience bloating and gas.
It is always recommended to consult a healthcare professional or a registered dietitian before making any significant dietary changes, especially if you have a medical condition like IBS. They can help you understand your specific fibre needs and guide you in making safe and effective dietary adjustments.
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Avoid gluten
Gluten is a group of proteins found in grains, including wheat, barley, and rye. It is present in most cereals, grains, pasta, and many processed foods.
Some people with IBS find that their symptoms improve when they cut out gluten, even if they do not have celiac disease. However, the research is not conclusive, and some studies have found no link between gluten consumption and IBS symptoms. Nevertheless, a small study from 2022 suggests that a gluten-free diet can improve IBS symptoms in a significant number of people. Another small study from the same year found that a gluten-free diet improved pain frequency and severity.
If you have IBS, you may want to try eliminating gluten from your diet to see if your symptoms improve. Gluten-free toast, for example, is a good alternative to regular bread, which can be hard to digest for people with IBS. Beer often contains gluten, so you may want to opt for a gluten-free option or a drink mixed with plain seltzer without artificial sweeteners or added sugar.
It is important to note that there is no one-size-fits-all approach to managing IBS, and the triggers can vary from person to person. If you are considering making dietary changes, it is always a good idea to consult your healthcare provider. They can guide you in making safe and effective changes that are tailored to your individual needs.
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Stay hydrated
Staying hydrated is essential for managing IBS, as dehydration can worsen symptoms. Dehydration occurs when the body loses more fluids than it takes in, hindering its regular functioning. This is of particular concern for those with IBS-D, who may experience dehydration due to frequent bouts of diarrhoea, and for those with IBS-C, who may suffer from dehydration-induced constipation.
To stay hydrated, it is recommended to consume at least 8 to 10 drinks of fluid (around 1.5 litres) per day. Water is the best option, but non-caffeinated drinks such as herbal tea are also suitable. For those with IBS-D, it is important to drink at least one cup of liquid every time you have a bowel movement. Additionally, electrolyte-infused drinks can be beneficial for both IBS-D and IBS-C, as they help to replenish electrolytes lost during diarrhoea and stimulate bowel movements in cases of constipation. You can make a DIY electrolyte drink by combining one litre of water with eight teaspoons of sugar and one teaspoon of salt. Sports drinks and rehydration beverages can also be helpful, as can consuming salty foods like chips, popcorn, or pretzels to maintain optimal salt levels.
Incorporating high-water-content fruits and vegetables into your diet can also aid in hydration. Good options include melons, berries, grapes, and lettuce. Potassium-rich foods such as bananas, potatoes, and fruit juices can help replace lost electrolytes, and a diet rich in fruits and vegetables can also help maintain high electrolyte levels while relieving IBS symptoms.
To ensure you are staying adequately hydrated, it is important to drink water consistently throughout the day and not just when you feel thirsty, as this is a sign that your body has already lost around 2-3% of its water content. Tracking your water intake with mobile apps, water bottles with measurements, or other methods can be helpful in maintaining proper hydration.
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Frequently asked questions
There is no single diet that works for everyone with IBS, but there are dietary changes that may improve your symptoms. It is important to work with a doctor or dietitian to ensure your nutritional needs are being met.
The low FODMAP diet is a temporary and restrictive eating plan that helps people with IBS figure out which foods are problematic and which reduce symptoms. FODMAP stands for fermentable oligosaccharides, disaccharides, monosaccharides, and polyols, which are short-chain carbohydrates that the small intestine absorbs poorly.
Low FODMAP foods include potatoes, oats, bananas, and carrots.
The low FODMAP diet eliminates many foods, including some fruits and vegetables. Fruits such as apples, apricots, and mangoes, and vegetables such as artichokes, asparagus, and beans are high in FODMAPs.
It is recommended to stay properly hydrated by drinking 8 to 10 drinks of fluid (around 1.5 litres) per day. It may also be helpful to vary your meal timing and eat smaller, more frequent meals to place less stress on the digestive tract.
