Celiac Disease Linked to Higher Mortality and Cancer Risk in Major New Study

People with celiac disease face a 21% higher risk of death compared to the general population, according to a major new study published in The Lancet Regional Health - Americas. The research also found elevated risks for cardiovascular disease and certain cancers—findings that challenge the assumption that a gluten-free diet fully resolves the long-term health risks associated with celiac disease.

Led by Dr. Jonas Ludvigsson at the Karolinska Institutet in Sweden, the study followed over 47,000 people with celiac disease and nearly 5,000 with dermatitis herpetiformis (the skin manifestation of celiac disease) for an average of 12 years. Each patient was matched with five people from the general population who were similar in age, sex, and other demographics but did not have celiac disease.

What This Means for You

If your child has celiac disease—or if you’re supporting someone who does—this study confirms something many in the community have long suspected: celiac disease is more than a dietary condition. Even with a strict gluten-free diet, it carries ongoing health risks that deserve medical attention.

The 21% increase in overall mortality is significant, but context matters. The absolute risk remains relatively low, and many people with celiac disease live long, healthy lives. What this study underscores is the importance of comprehensive healthcare beyond diet alone. Celiac patients need regular monitoring for cardiovascular health, bone density, nutritional deficiencies, and cancer screening appropriate to their elevated risk profile.

For parents like me raising a child with celiac disease, this research is a reminder that our advocacy extends beyond label-reading and safe restaurant meals. It means ensuring my son has a healthcare team that understands celiac disease as a systemic autoimmune condition—not just a food intolerance. It means asking his doctors about heart health, thyroid function, and other long-term considerations that this study brings into sharper focus.

The findings also reveal important differences in cancer risk. While celiac patients face higher rates of certain cancers—particularly non-Hodgkin lymphoma and small intestinal cancer—they actually show lower rates of breast, lung, and prostate cancer. Researchers don’t fully understand why, but it suggests celiac disease interacts with cancer risk in complex ways that deserve further investigation.

Key Takeaways

People with celiac disease have a 21% higher overall mortality risk compared to the general population.
Cardiovascular disease risk is elevated by 27% in celiac patients.
Certain cancers are more common in celiac disease, including non-Hodgkin lymphoma and small intestinal cancer.
Celiac patients show lower rates of breast, lung, and prostate cancer.
These risks persist even after diagnosis and treatment with a gluten-free diet, highlighting the need for ongoing medical care.

The Science

Want to understand how this actually works? We’ll walk you through the technical details below and define every term. No medical degree required.

Study Design and Population

This was a matched cohort study—a research design that compares people with a condition to similar people without it. The researchers used Swedish national health registries to identify 47,241 people with celiac disease diagnosed between 1969 and 2017, plus 4,887 people with dermatitis herpetiformis. Each celiac patient was matched with five reference individuals (comparison participants from the general population) who were similar in age, sex, calendar year, county of residence, and education level but did not have celiac disease.

The team then tracked what happened to these nearly 284,000 people over time, looking specifically at death rates, cardiovascular disease, and cancer diagnoses. The average follow-up period was 12.1 years—long enough to observe meaningful patterns in long-term health outcomes.

Mortality Findings

Overall, people with celiac disease had a hazard ratio of 1.21 for death from any cause. A hazard ratio is a statistical measure comparing the rate of an event (in this case, death) between two groups. A ratio of 1.21 means celiac patients were 21% more likely to die during the study period than matched individuals without celiac disease.

The increased mortality risk varied by subgroup. It was slightly higher in women (hazard ratio 1.23) than in men (1.18). People diagnosed as children (before age 18) showed similar patterns to those diagnosed in adulthood, suggesting the elevated risk spans all age groups.

Dermatitis herpetiformis patients faced an even higher mortality risk, with a hazard ratio of 1.42—a 42% increase compared to matched controls. This skin condition, caused by the same gluten sensitivity as celiac disease, appears to carry additional health burdens that warrant closer medical attention.

Cardiovascular Disease Risk

Celiac patients showed a 27% increase in cardiovascular disease risk (hazard ratio 1.27). Cardiovascular disease includes conditions affecting the heart and blood vessels, such as heart attacks, strokes, and heart failure. The mechanisms linking celiac disease to heart problems aren’t fully understood, but several factors likely contribute.

Chronic inflammation from celiac disease—even in people following a gluten-free diet—may damage blood vessels over time. Nutritional deficiencies common in celiac disease, such as low folate and vitamin B12, can raise levels of homocysteine (an amino acid linked to cardiovascular risk). Some studies also suggest celiac disease may increase the likelihood of developing other autoimmune conditions that affect the heart.

This finding builds on research we covered earlier this year showing that celiac disease increases the risk of pulmonary arterial hypertension, a specific type of cardiovascular complication.

Cancer Risk: A Complex Picture

The cancer findings reveal a nuanced picture. Celiac disease patients faced significantly elevated risks for:

Non-Hodgkin lymphoma: A type of cancer affecting the lymphatic system, part of the body’s immune defenses. Celiac patients had more than double the risk compared to the general population.
Small intestinal cancer: Rare in the general population but notably more common in celiac patients, likely related to chronic intestinal inflammation.
Kidney cancer and liver cancer: Both showed elevated rates in celiac patients.

However, celiac patients showed lower rates of several common cancers:

Breast cancer risk was reduced by 18%
Lung cancer risk was reduced by 48%
Prostate cancer risk was reduced by 22%

Why would celiac disease increase some cancer risks while decreasing others? Researchers don’t have definitive answers, but several theories exist. The reduced lung cancer risk may partly reflect lower smoking rates among celiac patients. The lower breast and prostate cancer rates might relate to differences in hormone levels or other metabolic factors associated with celiac disease and malabsorption.

The elevated lymphoma risk has been documented in previous research. Chronic immune activation from ongoing gluten exposure—whether from intentional or accidental ingestion—appears to increase the chance of lymphocytes (immune cells) becoming cancerous over time.

Dermatitis Herpetiformis: A Higher-Risk Variant

People with dermatitis herpetiformis faced even steeper health risks than those with classic celiac disease. Beyond the 42% increase in overall mortality, they showed higher cardiovascular disease risk and elevated cancer rates across multiple types.

Dermatitis herpetiformis is caused by the same immune reaction to gluten as celiac disease, but it manifests primarily as an intensely itchy, blistering skin rash. Most people with dermatitis herpetiformis also have intestinal damage similar to celiac disease, even if they don’t experience digestive symptoms. Our previous coverage of neurological comorbidities in dermatitis herpetiformis highlighted that this condition carries unique risks beyond the gut.

The higher mortality and disease risk in dermatitis herpetiformis patients may reflect more severe immune dysfunction or perhaps differences in diagnosis timing and treatment adherence. More research is needed to understand why this subset of celiac patients faces greater health challenges.

Study Strengths and Limitations

This study’s major strength is its size and duration. Following nearly 50,000 celiac patients for over a decade provides robust data that small studies cannot match. The use of national registries in Sweden—which have excellent coverage and accuracy—minimizes the selection bias that can plague research relying on voluntary participation.

However, limitations exist. The study couldn’t account for dietary adherence—whether patients strictly followed a gluten-free diet or experienced frequent gluten exposure. It also couldn’t measure ongoing intestinal damage or inflammation through biopsies or blood tests over time. Some of the elevated health risks might be concentrated in patients with poor dietary adherence or persistent intestinal damage, while those who achieve complete healing might face lower risks.

The study population was entirely Swedish, and health outcomes may differ in other countries with different healthcare systems, dietary patterns, and genetic backgrounds. The findings need validation in diverse populations before we can confidently generalize them worldwide.

Implications for Clinical Care

These findings argue for a more comprehensive approach to celiac disease management. The gluten-free diet remains the cornerstone of treatment and prevents many serious complications. But diet alone may not eliminate all excess health risks.

Celiac patients should receive regular screening for cardiovascular risk factors, including blood pressure, cholesterol, and inflammatory markers. Monitoring for nutritional deficiencies—particularly B vitamins, vitamin D, and minerals that affect heart health—should be standard practice. Cancer screening guidelines may need adjustment for celiac patients, with increased vigilance for lymphomas and gastrointestinal cancers.

The research also reinforces the importance of achieving complete intestinal healing, not just symptom relief. Persistent intestinal inflammation, even in the absence of symptoms, may drive some of the long-term health risks identified in this study.

For parents raising children with celiac disease, this research underscores the need to view celiac disease as a lifelong condition requiring ongoing medical oversight—not something that’s “cured” once you master the gluten-free diet. It’s information I’ll be bringing to my son’s next gastroenterology appointment.

References

Ludvigsson JF, Dagher J, Lebwohl B, Yao J, Green PHR, Ludwig RJ, Curman P. Mortality, cardiovascular disease, and cancer in coeliac disease and dermatitis herpetiformis: a matched cohort study. Lancet Reg Health Am. 2026 May 28;60:101512. doi: 10.1016/j.lana.2026.101512. PMID: 42256615; PMCID: PMC13235495.