According to Gram Research analysis, most people with inflammatory bowel disease avoid certain foods during flare-ups, but only 24% stick with special diets long-term. A 2026 survey of 567 IBD patients across Asia-Pacific countries found that 80% avoid foods during flares, yet meal preparation difficulty and social situations prevent long-term adherence. Mediterranean and low-fiber diets were most acceptable, while people who received advice from friends were more likely to follow dietary changes than those advised by doctors.
A new survey of 567 people with inflammatory bowel disease (IBD) across Asia-Pacific countries reveals how patients actually approach food and diet. While most people avoid certain foods during flare-ups, very few stick with special diets long-term. The biggest challenges? Preparing meals and dealing with social situations. Interestingly, people often follow diet advice from friends and family instead of doctors. The research shows that Mediterranean and low-fiber diets are most acceptable to patients, while doctors need better communication strategies to help people manage IBD through food choices.
Key Statistics
A 2026 cross-sectional survey of 567 IBD patients across Asia-Pacific countries found that while 80.2% avoided certain foods during disease flare-ups, only 24.4% maintained long-term adherence to special diets.
According to the survey, 46% of IBD patients cited meal preparation difficulty as a major barrier to following special diets, and 42.9% reported that social situations interfered with dietary adherence.
The research showed that 77.2% of IBD patients prioritized dietary effectiveness in symptom control, and 69.6% valued ease of meal preparation when choosing diets.
IBD patients who received dietary advice from friends and family were significantly more likely to avoid foods during relapse and attempt therapeutic diets compared to those advised by healthcare professionals (P < 0.01).
The Quick Take
- What they studied: How people with inflammatory bowel disease (IBD) feel about diet, what stops them from following special diets, and which diets they find easiest to stick with.
- Who participated: 567 adults with IBD from four Asia-Pacific countries, recruited through 10 medical centers. About 56% had Crohn’s disease, and 43% had lived with IBD for more than 10 years.
- Key finding: While 80% of people avoid certain foods during flare-ups, only 24% actually stick with special diets long-term. Most people get diet advice from friends and family rather than doctors, and they’re more likely to follow that informal advice.
- What it means for you: If you have IBD, talking to your doctor about diet might help more than following advice from friends. Doctors can suggest diets that fit your lifestyle and are easier to prepare, which are the main reasons people quit special diets.
The Research Details
Researchers created an online survey and sent it to 10 IBD clinics across four Asia-Pacific countries. People with IBD answered questions about what they believe about diet, what stops them from following special diets, and how acceptable they find different eating plans. They rated each diet on a scale of 1 to 5, with 4 or higher meaning they found it acceptable. The survey was anonymous, so people could answer honestly without worrying about judgment.
This type of study is called cross-sectional, which means researchers took a snapshot of what people think and do at one point in time, rather than following them over months or years. The researchers asked about Mediterranean diets, low-fiber diets, exclusive enteral nutrition (a liquid diet), and other approaches.
Understanding what actually stops people from following diet recommendations is just as important as knowing which diets work best. If a diet is scientifically perfect but too hard to prepare or too socially awkward to follow, people won’t stick with it. This research helps doctors understand the real-world challenges their patients face, so they can suggest more practical solutions.
This study surveyed a large number of people (567) across multiple countries, which makes the findings more reliable than a single clinic’s experience. However, the survey only captured what people said at one moment in time, not what actually happened over months. Also, people who responded to an online survey might be different from those who didn’t respond—perhaps more tech-savvy or more interested in diet. The study didn’t measure actual health outcomes, just beliefs and preferences.
What the Results Show
The survey revealed a major gap between what people do during flare-ups and what they do long-term. When IBD symptoms flare up, 80% of people avoid certain foods, but only 46% actually change their diet during flares. More importantly, just 24% stick with special diets over the long term. This suggests people try dietary changes when desperate but abandon them when life gets busy.
Another striking finding: people who got diet advice from friends and family were significantly more likely to avoid foods and try special diets than those who only heard from doctors. This happened even though doctors’ advice is based on medical evidence. The researchers found that 77% of people care most about whether a diet helps control symptoms, and 70% want diets that are easy to prepare.
When it comes to specific diets, Mediterranean diets and low-fiber diets were most acceptable to patients. Exclusive enteral nutrition—a liquid diet used to treat severe IBD—was least acceptable, probably because it’s hard to maintain socially and requires special preparation.
The study identified two major barriers preventing people from following special diets: 46% said meal preparation was difficult, and 43% said social situations interfered with their diet. Only 41% of people believed diet actually causes IBD in the first place, which might explain why some don’t prioritize dietary changes. Interestingly, people with longer disease duration (over 10 years) made up 43% of the sample, suggesting they had experience trying different approaches.
Previous research has shown that diet can help manage IBD symptoms, but this study confirms what many doctors suspected: the gap between what works scientifically and what people actually do is huge. Earlier studies focused on which diets are most effective, but this research highlights that acceptability and practicality matter just as much. The finding that informal advice influences behavior more than professional advice aligns with broader health communication research showing that people trust personal networks.
This study only captured what people said they believe and do, not what they actually did. People might have exaggerated how much they follow diets or avoided admitting they ignore doctor’s advice. The survey was online, so it may have missed people without internet access or less comfortable with technology. The study didn’t track people over time, so we don’t know if their beliefs and behaviors changed. Finally, the study didn’t measure whether dietary changes actually improved people’s health outcomes.
The Bottom Line
If you have IBD, talk to your doctor or a dietitian about diet changes rather than relying on advice from friends and family. Ask your doctor to suggest diets that are easy to prepare and fit your social life, since those are the main reasons people succeed long-term. Mediterranean and low-fiber diets appear most acceptable and practical for most people. Start with small, manageable changes rather than trying to overhaul your entire diet at once. (Confidence: Moderate—based on patient preferences, not health outcomes)
Anyone with IBD (Crohn’s disease or ulcerative colitis) should care about these findings, especially if they’re struggling to stick with dietary recommendations. Healthcare providers treating IBD patients should use this research to improve how they discuss diet with patients. People newly diagnosed with IBD can learn that diet matters but that practical factors like meal prep difficulty are just as important as the diet itself.
Most people in this study who tried dietary changes saw results during flare-ups (within days to weeks), but long-term adherence took months to establish. Expect to need 4-8 weeks to adjust to a new diet pattern and determine if it helps your symptoms. If a diet isn’t working or feels too difficult after a month, talk to your doctor about alternatives rather than giving up.
Frequently Asked Questions
What diet is best for inflammatory bowel disease?
Mediterranean and low-fiber diets were most acceptable to IBD patients in a 2026 survey of 567 people. However, the best diet depends on your individual symptoms and what you can realistically prepare and maintain. Talk to your doctor or dietitian about options that fit your lifestyle.
Why do people with IBD stop following special diets?
A 2026 survey found that 46% of IBD patients struggle with meal preparation difficulty, and 42.9% face social interference. Even though 80% avoid foods during flare-ups, only 24% maintain diets long-term because practical barriers and social situations make them unsustainable.
Should I follow diet advice from friends or my doctor?
Follow your doctor’s advice. Research shows IBD patients who received guidance from friends and family were more likely to avoid foods, but doctor-recommended diets are based on medical evidence. Your healthcare provider can suggest diets tailored to your specific needs and lifestyle.
How long does it take to see results from dietary changes in IBD?
Most people in the survey saw results during flare-ups within days to weeks of avoiding trigger foods. However, establishing a long-term dietary pattern typically takes 4-8 weeks. If a diet isn’t helping after a month, discuss alternatives with your doctor rather than giving up.
What percentage of people with IBD believe diet causes their disease?
Only 40.6% of IBD patients surveyed believed diet contributes to disease causation, yet 80.2% avoided certain foods during flare-ups. This gap suggests people recognize diet affects symptoms even if they don’t think it causes IBD initially.
Want to Apply This Research?
- Log which foods you avoid during flare-ups and rate how easy each meal was to prepare on a scale of 1-10. Track this weekly to identify patterns in what triggers symptoms and which meal-prep strategies actually work for your lifestyle.
- Use the app to set a weekly goal of preparing one new Mediterranean or low-fiber recipe that takes less than 30 minutes. Share your meal plans with a healthcare provider through the app rather than relying on informal advice from friends.
- Create a monthly check-in where you rate your adherence to dietary recommendations (1-10) and identify which barriers (meal prep difficulty, social situations, symptom control) affected you most that month. Use this data to adjust your approach with your doctor’s guidance.
This research describes patient beliefs and dietary preferences, not medical treatment recommendations. If you have inflammatory bowel disease, consult your gastroenterologist or registered dietitian before making significant dietary changes. This study does not replace professional medical advice, and dietary interventions should be part of a comprehensive treatment plan supervised by your healthcare provider. Individual responses to dietary changes vary significantly, and what works for one person may not work for another.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.