Low FODMAP diets are most commonly recommended for patients with irritable bowel syndrome (IBS). While symptoms vary widely, many who suffer from IBS have experienced relief through the reduction of high FODMAP foods.
WHAT EXACTLY IS THE FODMAP DIET?
FODMAP stands for Fermentable Oligo-, Di-, and Mono-saccharides, And Polyols.
The dietary approach was developed in 2005 by Australian researchers at Monash University to improve digestive symptoms for those with IBS or, in some cases, inflammatory bowel disease.
Oligo-saccharides include legumes, wheat, rye, garlic, onions and artichokes. Di-saccharides include dairy products containing lactose, such as milk, ice cream and cheese.
Mono-saccharides contain glucose and fructose, such as honey and some fruits. Polyols include sugar-free gum/mints as well as select fruits and vegetables.
✅ FOODS YOU CAN EAT (Eating More Low FODMAP Foods)
Dairy:
Almond milk
Lactose-free milk
Rice milk
Coconut milk
Lactose-free yogurt
Hard cheeses (like feta and brie)
Fruit:
Bananas
Blueberries
Cantaloupe
Grapefruit
Honeydew
Kiwi
Lemon
Lime
Oranges
Strawberries
Vegetables:
Bamboo shoots
Bean sprouts
Bok choy
Carrots
Chives
Cucumbers
Eggplant
Ginger
Lettuce
Olives
Parsnips
Potatoes
Spring onions
Turnips
Protein:
Beef
Pork
Chicken
Fish
Eggs
Tofu
Nuts/Seeds (limit to 10-15 each):
Almonds
Macadamia nuts
Peanuts
Pine nuts
Walnuts
Grain:
Oats
Oat bran
Rice bran
Gluten-free pasta
Quinoa
White rice
Corn flour
If you’re thinking about trying out this diet, it’s a good idea to chat with a registered dietitian or Charleston GI doctor. A medical professional will make sure your eating plan is both safe and healthy.
❌ FOODS YOUR SHOULD NOT EAT (Avoiding High FODMAP Foods)
Fructose:
Fruits like apples, mangos, pears, and watermelon
Honey
High-fructose corn syrup
Agave
Lactose:
Dairy, including milk from cows, goats, or sheep
Custard
Yogurt
Ice cream
Fructans:
Rye and wheat
Vegetables like asparagus, broccoli, cabbage, onions, and garlic
Galactans:
Legumes, including beans (like baked beans), lentils, chickpeas, and soybeans
Polyols:
Sugar alcohols
Fruits with pits or seeds, such as apples, apricots, avocados, cherries, figs, peaches, pears, or plums
It’s recommended to speak with your doctor directly for any dietary changes for gastrointestinal health. If you’re in the Charleston area, Charleston GI doctors are available 5 days a week. No referral needed! Schedule appointment today!
How Helpful is the FODMAP Diet for IBS?
The goal of low FODMAP diets for IBS is to limit the short-chain carbohydrates that are not easily digested and absorbed in the small intestine.
In theory, the removal and strategic reintroduction of potential “trigger foods” helps to determine intolerances. It is important for people with IBS to seek medical advice first.
Here at Charleston GI, our specialists can help you identify the high FODMAP foods that trigger symptoms – and how best to avoid them. For instance, if lactose triggers symptoms, we can help create a diverse, lactose-free diet that ensures your body gets the nutrients it needs.
Keep in mind that low FODMAP diets can be difficult to follow, but they are just temporary – and could result in long-term benefits!
Are There Any Good Benefits from a FODMAP Diet?
Low FODMAP diets for those who suffer from IBS have proven effective, helping to reduce painful symptoms and improve overall quality of life.
In order to maintain a balanced amount of protein, fat, carbs and nutrients, low FODMAP diets should only be followed under a professional’s supervision.
Schedule your appointment at Charleston GI to find out if a low FODMAP diet is right for you!
So, How Does it Work?
3 Steps To FODMAP Diet Process:
Step 1: Eliminate High FODMAP Foods
With guidance from your healthcare provider, start by cutting out FODMAPs from your diet.
Step 2: Gradual Reintroduction Safe Foods
Slowly reintroduce carbohydrates, one at a time. Observe how your body reacts and pinpoint any troublesome foods.
Step 3: Journaling and Adapt
Keep a food diary and symptom chart handy. Identify foods causing symptoms, allowing you to avoid or limit them while freely enjoying everything else.
Following these steps can make your FODMAP diet journey more manageable and effective. It’s recommended to speak with your doctor directly for any dietary changes for gastrointestinal health.
Medical professionals suggest sticking to the elimination phase of the diet for a duration of two to six weeks. This helps alleviate symptoms and, in the case of SIBO, can reduce abnormally high levels of intestinal bacteria.
After this initial period, every three days, reintroduce a high FODMAP food into your diet one at a time, carefully monitoring for any adverse reactions. If a specific high FODMAP food triggers symptoms, it’s wise to avoid it in the long run.
Keep in mind that dietary restrictions vary for each person based on their health, so it’s crucial to have a direct conversation with your doctor if you’re considering the FODMAP diet.
IBS Symptoms That Can Improve With FODMAP
While not designed for weight loss, low FODMAP diets may improve the following digestive symptoms:
Knowing when to consult a doctor is crucial when dealing with IBS and SIBO symptoms.
While dietary changes play a significant role, healthcare professionals often employ additional therapies. Antibiotics are effective in swiftly reducing small intestinal bacterial overgrowth, and symptoms of irritable bowel syndrome can be alleviated with laxatives and low-dose antidepressants.
The most effective approach often involves a combination of dietary adjustments, medications, and stress management techniques. Collaborating with a doctor can help you discover personalized treatments for SIBO and IBS that work well for your specific situation.
Schedule an Appointment with Charleston GI Doctors, No Referral Needed
To learn more about low FODMAP diets for irritable bowel syndrome, visit us at Charleston GI today! We offer convenient locations throughout the Lowcountry in Summerville, Carnes Crossroads, and West Ashley.
If you are following a low FODMAP diet for digestive health, these snack options are commonly well tolerated:
Gluten free pretzels or crackers with tuna salad or egg salad made with lactose free ingredients
Hard boiled eggs
Plain popcorn with no added flavors or seasoning
Rice cakes with peanut butter or almond butter
Rice crackers with lactose free cheese
Roasted nuts or seeds such as pumpkin seeds or sunflower seeds
Small portions of low FODMAP fruits like bananas, grapes, or oranges
Raw vegetables such as carrot sticks, cucumber slices, or bell pepper strips
The low FODMAP diet is intended to be short term. It is used to help identify which carbohydrates trigger your symptoms. Once triggers are identified, foods can be slowly reintroduced so you can maintain balanced nutrition while avoiding problem foods.
FODMAP stands for Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols. These are types of carbohydrates that may cause digestive symptoms in some people.
Some people tolerate FODMAPs without issues. Others may experience:
Abdominal cramps
Bloating
Gas
Diarrhea
These symptoms occur because FODMAPs draw water into the digestive tract and ferment easily in the gut.
The low FODMAP diet is commonly used to help manage IBS and SIBO. Research shows it can reduce symptoms for many patients.
Because the diet is restrictive, it is important to work with a doctor or registered dietitian to ensure it is followed correctly and nutritional needs are met.
This diet is not intended for weight loss. People who are already underweight should not follow it without medical supervision, as unintentional weight loss can occur.
The low FODMAP diet focuses on limiting specific carbohydrates that can trigger digestive symptoms
A gluten free diet eliminates gluten and is used to manage celiac disease
A dairy free diet removes all dairy products and is typically used for lactose intolerance or dairy allergies
Each diet serves a different purpose and addresses different digestive concerns.
Irritable bowel syndrome is an intestinal disorder causing individuals pain in the belly, gas, diarrhea, and constipation.
Common IBS symptoms include:
Abdominal pain
Bloating
Constipation
Diarrhea
Some patients manage symptoms through diet changes, lifestyle adjustments, and stress reduction. Working with a board certified gastroenterologist is recommended for proper diagnosis and care.
The exact cause of IBS is not fully understood. Diagnosis is typically based on symptoms rather than a single identifiable cause. A gastroenterologist can evaluate symptoms and rule out other conditions.
IBS treatment varies by individual and may include:
Dietary changes such as increased fiber or a low FODMAP diet
Regular physical activity
Stress management and relaxation techniques
Medications when appropriate
Counseling or therapy, including cognitive behavioral therapy or biofeedback
You should schedule an appointment with an experienced gastroenterologist for proper medical support on treatments with IBS.
Many gastroenterologists recommend the low FODMAP diet for IBS because it helps reduce trigger foods while supporting digestive health.
Alcohol is generally not recommended for people with IBS. It can irritate the digestive tract and trigger flare ups. Some patients report increased cramping, bloating, constipation, or diarrhea after consuming alcohol.
IBS flare ups vary from person to person. Symptoms may last for days or weeks and can change over time. Ongoing care with a gastroenterologist can help manage symptoms and monitor progress.
Monash University: The Low FODMAP Diet. Monash University is the pioneer of the low FODMAP protocol, establishing the baseline framework for managing functional gastrointestinal disorders.
Harvard Health Publishing: Try a temporary low-FODMAP diet for IBS. Harvard Medical School provides a clinical breakdown of how short-chain carbohydrates affect fluid and gas buildup in the small and large intestines.
Johns Hopkins Medicine: FODMAP Diet: What You Need to Know. Insights into the three phases of the diet (elimination, reintroduction, and personalization) and its efficacy for conditions like IBS and SIBO.
Charleston GI: Irritable Bowel Syndrome (IBS) Overview & Treatment: Explore comprehensive care options, diagnostic approaches, and personalized treatment plans available at Charleston GI for managing chronic IBS symptoms.
Learn More
Charleston GI: FODMAP Reintroduction Guide: A step-by-step walkthrough on how to safely test individual FODMAP food groups, identify your personal triggers, avoid common testing mistakes, and expand your diet.
Charleston GI: Types of IBS – Learn more about the four subtypes of irritable bowel syndrome—IBS-C, IBS-D, IBS-M, and IBS-U—and how identifying your specific pattern guides targeted treatment.
Charleston GI: IBS vs. IBD vs. Celiac Disease – Understand the key differences between functional bowel disorders, inflammatory bowel disease, and autoimmune conditions to better recognize your symptoms.
Charleston GI: Introduction to SIBO Breath Testing – An introductory guide explaining how SIBO breath testing works, why it is used, and how measuring gas levels helps evaluate bacterial overgrowth.
Charleston GI: What Happens During a SIBO Breath Test? – A step-by-step guide on what to expect during your appointment, from drinking the testing solution to providing timed breath samples.
Charleston GI: What Is the Difference Between SIBO and IBS? – A comprehensive breakdown explaining how small intestinal bacterial overgrowth and irritable bowel syndrome differ in their causes, diagnostic testing, and treatment plans.
Medical Disclaimer: The information in this article is for general educational purposes and is not medical advice. Individual dietary needs vary. Always consult your healthcare provider before making changes to your diet, especially for conditions like Irritable Bowel Syndrome (IBS).
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