According to Gram Research analysis, about one-third of young people with celiac disease follow additional special diets beyond their required gluten-free diet, but these extra restrictions don’t improve their overall well-being or how well their celiac disease is controlled. A 2026 cross-sectional study of 422 young adults found that celiac patients following only a gluten-free diet actually reported fewer stomach symptoms and had fewer challenges managing meals at school and work compared to those combining gluten-free with other dietary restrictions.
A new study looked at young people with celiac disease to see if following extra diets on top of their gluten-free diet helped them feel better. Researchers surveyed 210 celiac patients and 212 people without celiac disease, all between ages 16-30. About one-third of both groups followed additional special diets like vegetarian or vegan eating. Surprisingly, the study found that adding extra dietary restrictions didn’t improve how well people felt or how well their celiac disease was controlled. However, those following only a gluten-free diet reported fewer stomach problems and had an easier time eating at school and work.
Key Statistics
A 2026 cross-sectional study of 422 young adults (210 with celiac disease, 212 controls) found that one-third of celiac patients followed additional special diets beyond their gluten-free diet, with vegetarian/vegan (9%), allergy-avoidance (8%), and irritable bowel syndrome diets (7%) being most common.
Among celiac patients, those following only a gluten-free diet reported fewer gastrointestinal symptoms at diagnosis (58% versus 75%) and fewer challenges with school and workplace meals (27% versus 39%) compared to those combining gluten-free with other dietary restrictions.
A 2026 study of 210 celiac disease patients found no significant differences in diet adherence (91% versus 93%), persistent symptoms, health concerns, or overall well-being between those following only a gluten-free diet and those adding additional dietary restrictions.
Among young people with celiac disease, 11% reported difficulties combining their gluten-free diet with other special diets, yet this challenge did not affect their actual adherence rates to either dietary approach.
The Quick Take
- What they studied: Whether young people with celiac disease who follow additional special diets (like vegetarian or allergy diets) along with their required gluten-free diet feel better or have better health outcomes than those who only follow a gluten-free diet.
- Who participated: 210 young people with celiac disease and 212 young people without celiac disease, all between ages 16-30. About half were students, and the rest were working.
- Key finding: One-third of celiac patients followed extra special diets, but these additional restrictions didn’t improve their overall well-being, symptom relief, or how well they stuck to their gluten-free diet compared to those following only a gluten-free diet.
- What it means for you: If you have celiac disease and are thinking about adding another special diet, know that it probably won’t make you feel significantly better. However, talk to your doctor before making dietary changes, as individual needs vary.
The Research Details
Researchers created an anonymous survey and asked 210 young people with celiac disease and 212 young people without celiac disease (ages 16-30) to fill it out. They asked about what diets people followed, how they felt physically and mentally, how well they managed their diets, and other lifestyle factors like exercise and smoking.
The researchers then compared the answers from celiac patients who followed only a gluten-free diet with those who followed a gluten-free diet plus one or more additional special diets. They looked at whether the extra diets made any difference in symptoms, well-being, or how well people stuck to their diets.
This type of study is called a cross-sectional survey, which means researchers collected information from people at one point in time rather than following them over months or years.
This research approach is important because it shows real-world patterns in how young people with celiac disease actually eat. Instead of testing one specific diet in a controlled setting, researchers looked at what people naturally choose to do and whether those choices help them. This gives practical information that doctors and patients can use when making decisions about diet.
The study surveyed a decent-sized group of young people (422 total), which gives fairly reliable results. Both celiac patients and non-celiac controls were included, which helps show whether the patterns are unique to celiac disease or common in the general population. However, because this was a survey rather than a controlled experiment, we can’t be completely certain that extra diets cause the outcomes—other factors we didn’t measure might be involved. The study also only included young people ages 16-30, so results might not apply to children or older adults.
What the Results Show
The study found that about one-third of young people with celiac disease followed additional special diets beyond their required gluten-free diet. The most common extra diets were vegetarian or vegan (9%), allergy-avoidance diets (8%), and diets for irritable bowel syndrome (7%). Interestingly, the control group without celiac disease had similar patterns, with about one-third also following special diets.
When researchers compared celiac patients following only a gluten-free diet with those following a gluten-free diet plus other restrictions, they found no meaningful differences in overall well-being, how well they stuck to their diets (91% vs. 93% adherence), or whether their symptoms improved. Both groups had similar rates of persistent stomach problems and health concerns.
However, there were some differences worth noting. Young people following only a gluten-free diet reported fewer stomach symptoms when they were first diagnosed (58% had symptoms versus 75% in the group with additional diets). They also had fewer challenges managing meals at school and work (27% had difficulties versus 39% in the group with additional diets).
About 11% of celiac patients reported that combining their gluten-free diet with other dietary restrictions was challenging, but this difficulty didn’t seem to affect how well they actually followed their diets.
The study found that celiac patients with and without additional diets were similar in most ways—same gender distribution, similar body weight, similar exercise levels, and similar use of alcohol and tobacco. This suggests that people weren’t choosing extra diets because they were already sick or unhealthy; rather, it appears to be a lifestyle choice independent of their celiac disease status. The fact that the control group (people without celiac disease) had similar rates of following special diets suggests that this trend toward multiple dietary restrictions is common in young people generally, not specific to celiac disease.
This is one of the first studies to specifically look at how common it is for celiac patients to follow multiple special diets and whether those extra diets help. Previous research has focused mainly on whether people stick to a gluten-free diet alone. This study adds important information by showing that many young people with celiac disease are adding extra dietary restrictions, and that these additions don’t appear to improve their health outcomes. The findings align with broader trends showing that special diets are increasingly popular among young people in general.
This study only surveyed young people ages 16-30, so we don’t know if the same patterns apply to children or adults over 30. Because it was a survey rather than a controlled experiment, we can’t prove that extra diets cause the outcomes—other factors we didn’t measure might be involved. The study relied on people’s own reports about their diets and symptoms, which might not be completely accurate. Additionally, the study didn’t look at specific reasons why people chose to follow extra diets, so we don’t know if some people had medical reasons (like a real allergy) versus lifestyle reasons.
The Bottom Line
If you have celiac disease, focus on strictly following your gluten-free diet, as this is the proven treatment. Before adding another special diet, talk with your doctor or a dietitian to make sure it’s medically necessary. If you do follow multiple diets, be aware that combining them might create practical challenges with meal planning and eating at school or work, so plan ahead. (Confidence level: Moderate—based on observational data rather than controlled trials.)
This research is most relevant for young people (ages 16-30) with celiac disease who are considering adding extra dietary restrictions. It’s also useful for parents of teenagers with celiac disease, doctors who treat celiac patients, and dietitians who counsel people with celiac disease. The findings suggest that extra diets aren’t necessary for better health outcomes, which can help guide counseling conversations.
If you’re already following a gluten-free diet and considering adding another diet, you shouldn’t expect to feel significantly better within weeks or months from the additional restriction. The study suggests that the main benefit of dietary management in celiac disease comes from the gluten-free diet itself, not from additional restrictions.
Frequently Asked Questions
Should I follow a special diet in addition to my gluten-free diet if I have celiac disease?
Research shows that adding extra special diets doesn’t improve well-being or symptom control in celiac patients. Focus on strictly following your gluten-free diet first. Only add another diet if your doctor identifies a specific medical reason, like a confirmed food allergy or intolerance.
Do vegetarian or vegan diets help people with celiac disease feel better?
A 2026 study found that celiac patients following vegetarian/vegan diets alongside gluten-free eating showed no improvement in overall well-being or symptom relief compared to those following only gluten-free. Choose vegetarian eating for ethical or environmental reasons, not for health benefits related to celiac disease.
Is it harder to manage multiple diets if you have celiac disease?
Yes, about 11% of celiac patients reported challenges combining gluten-free with other dietary restrictions. Those following only gluten-free had fewer difficulties managing meals at school and work (27% versus 39%). Plan carefully if you choose multiple diets.
What percentage of young people with celiac disease follow extra diets?
Approximately one-third of young celiac patients (ages 16-30) follow additional special diets beyond gluten-free, most commonly vegetarian/vegan (9%), allergy-avoidance (8%), and irritable bowel syndrome diets (7%). This rate is similar to non-celiac peers.
Can adding a diet for IBS help if I have both celiac disease and IBS symptoms?
A 2026 study found that celiac patients following IBS-specific diets alongside gluten-free showed no better symptom control or well-being than those following gluten-free alone. Consult your gastroenterologist about whether additional dietary changes are medically necessary for your specific situation.
Want to Apply This Research?
- Track your adherence to your gluten-free diet (aim for 100%) and monitor your gastrointestinal symptoms weekly using a simple 1-10 scale. If you’re following additional diets, separately track adherence to those as well to see if they correlate with symptom changes.
- Use the app to log meals and identify which foods trigger your symptoms. Focus on perfecting your gluten-free diet first before considering additional restrictions. If you do add another diet, use the app’s meal-planning feature to simplify combining multiple dietary rules.
- Set monthly check-ins to review your symptom patterns and overall well-being scores. Compare months when you’re strictly gluten-free versus months when you’re also following additional diets to see if there’s any personal difference in how you feel. Share this data with your doctor to guide decisions about dietary changes.
This research describes patterns in how young people with celiac disease manage their diets but does not provide personalized medical advice. If you have celiac disease or suspect you might, consult with a gastroenterologist or registered dietitian before making dietary changes. This study applies to young adults ages 16-30 and may not reflect experiences of children or older adults. Individual responses to dietary changes vary, and some people may have additional medical conditions requiring specific dietary modifications beyond gluten-free eating.
This research translation is published by Gram Research, the science division of Gram, an AI-powered nutrition tracking app.
