Celiac Disease Treatment: The Gluten-Free Diet, Follow-Up Care, and What If Symptoms Persist

Celiac disease is treated with a strict gluten-free diet, kept up for life [1][6]. The NHS says cutting out all gluten prevents damage to the lining of the gut and the symptoms that come with it [1], and the NIDDK says that for most people the diet heals existing damage in the small intestine and prevents more [4]. The American College of Gastroenterology (ACG) states that there is currently no other treatment available [6]. For what to eat and avoid, see Gluten-Free Diet: What You Can and Cannot Eat with Celiac Disease.

No medicine has yet been approved to replace the diet, according to a 2025 review in The BMJ [8]. Research in progress is covered in New Treatments for Celiac Disease: Will You Ever Eat Gluten Again?.

How Quickly the Diet Works

Health bodies give different time frames for this. The NIDDK says many people notice their symptoms improve within days to weeks [4], the NHS says within weeks [1], and the 2025 BMJ review says within two to four weeks [8]. Healing of the gut takes longer. The American Gastroenterological Association (AGA) says the small intestine usually heals within two years in adults and within a few months in children and young adults [7], while the NHS says complete healing may take up to a few years [1].

The AGA also points out that you always have the condition, even once your blood tests return to normal, and that normal results "do not mean that you are able to eat gluten" [7]. The NIDDK suggests asking a pharmacist about the ingredients in prescription and over-the-counter medicines and in supplements, while noting that medicines are a rare source of gluten [4].

Follow-Up After Diagnosis

Follow-up looks a little different depending on where you live.

In the UK, the NHS says your GP will offer a yearly review, measuring your height and weight, going over your symptoms and diet, and checking whether you need more help or specialist nutrition advice [1]. The NICE guideline for England sets out the same annual review. If concerns come up, it asks a GP or consultant to look at the need for a bone density scan, specific blood tests, checks for long-term complications, or a specialist referral [3].

In the US, the ACG says yearly follow-up should include a blood test to track celiac activity [6]. The AGA advises seeing your doctor regularly and describes long-term care from a team that includes your doctor and a dietitian [7]. The NIDDK says your doctor may suggest regular visits to make sure symptoms and other health problems are improving on the diet [4].

The 2025 BMJ review notes that monitoring practice varies widely because evidence is limited, and that the first evidence-based guidelines for monitoring adults with established celiac disease appeared only in 2024 [8]. It describes regular follow-up with a dietitian as "paramount", because ongoing gluten intake is the most common reason the disease stays active [8]. For who does what in your care, see Which Doctor Treats Celiac Disease? Gastroenterologist vs Dietitian.

Repeat Blood Tests

The NIDDK explains that celiac antibodies are high in untreated disease and usually return to normal with treatment [4]. The BMJ review says levels often fall a lot within months and can normalize within the first year, although children with more severe disease at diagnosis may take more than a year. Results that stay positive or do not fall may point to ongoing gluten exposure [8].

A normal result is reassuring but does not settle everything. The BMJ review notes that antibody tests do not reliably show whether the gut lining is still damaged [8], and NICE advises against using a blood test alone to judge whether gluten has been cut out of the diet [3]. Details of the tests themselves are in How Is Celiac Disease Diagnosed? Blood Tests, Biopsy, and What to Expect.

Will You Need Another Biopsy?

The AGA says your gastroenterologist may take another biopsy about one to two years after you start the diet to check that it is working [7], and the ACG notes that some specialists repeat the biopsy to confirm healing even when symptoms have gone [6]. The NIDDK says doctors may recommend another biopsy in some cases [4].

In England, NICE advises considering a biopsy once ongoing gluten exposure has been ruled out, if antibody levels stay high with little change after 12 months or if symptoms such as diarrhea, abdominal pain, weight loss, tiredness or unexplained anemia persist [3]. The 2025 BMJ review reports that recent consensus guidelines advise against routine repeat biopsy for people without symptoms, but there is broad agreement that one is needed when symptoms, positive blood tests, worsening anemia or signs of poor absorption continue despite the diet [8].

Nutrition and Bone Checks

The NIDDK says your doctor may test for low vitamin and mineral levels when you are diagnosed [4]. The ACG lists iron, vitamin B12, folate, zinc, copper, vitamin D and calcium as nutrients that may be low and suggests checking levels, especially in adults [6]. The NHS notes that poor absorption can lead to anemia from low iron, vitamin B12 or folate, and to osteoporosis [2].

Supplements are for people who need them. The NHS says a GP or dietitian may recommend them, for example for iron deficiency anemia, while the gut repairs [1]. NICE notes that some people may need calcium or vitamin D if their diet does not provide enough, and advises asking your healthcare team before taking over-the-counter supplements [3]. The NIDDK also recommends talking with your doctor before using any supplement [4]. A gluten-free diet planned without expert help may be low in fiber, iron and calcium, the NIDDK adds [5].

Bone Density

The ACG says a bone density test is done when an adult is diagnosed [6], and the NIDDK says your doctor may recommend one if you are at risk of osteoporosis [4]. In England, NICE asks doctors to consider a bone density scan if the yearly review raises concerns [3]. More on bone health is in Osteoporosis: Causes, Symptoms, Diagnosis, Fracture Risk, and Treatment (Complete Guide).

Seeing a Dietitian

The NHS says you will be referred to a dietitian when first diagnosed [1], and the NIDDK and the AGA both suggest one who specializes in celiac disease [4][7]. The BMJ review says several international guidelines recommend seeing a dietitian soon after diagnosis [8]. NICE suggests considering specialist dietary advice again at the yearly review [3].

Vaccinations

Advice on vaccines varies between bodies. NICE points to UK immunization guidance that recommends pneumococcal vaccination for people with celiac disease [3]. The NHS says extra vaccines, including flu and pneumococcal, mainly matter if celiac disease has affected how well your spleen works, and are not usually necessary otherwise [1]. In the US, the AGA advises a yearly flu vaccine and a pneumococcal vaccine [7].

If Symptoms Continue on the Diet

Ongoing symptoms are fairly common, and estimates vary widely, from about 1 in 5 people according to the NIDDK [4] to 50 to 60 percent in the 2025 BMJ review [8]. Doctors sometimes call this non-responsive celiac disease. The most common cause is gluten getting into the diet unnoticed. In one study described in the BMJ review, ongoing gluten exposure or a slow response to the diet was involved in nearly 80 percent of cases of persistent gut damage [8].

Other conditions can also cause symptoms. The NIDDK lists irritable bowel syndrome, lactose intolerance, microscopic colitis, pancreas problems and bacterial overgrowth in the small intestine [4], and NICE gives a similar list [3]. In England, NICE asks doctors to recheck the original diagnosis, refer you to a specialist dietitian to look for hidden gluten, and then look for complications or other conditions [3]. The AGA says that most of these causes are simply treated [7].

What helps on your side is keeping track. The NIDDK suggests keeping a food journal and reviewing it with your doctor or dietitian, including products you use that might contain gluten [4]. The AGA says that if no gluten source is found and you have been on the diet for at least six months, it is worth seeing your gastroenterologist again to discuss further tests [7]. If you have dermatitis herpetiformis, an itchy rash linked to gluten, the NHS notes it can take longer to clear than other symptoms [1], and the NIDDK says doctors may prescribe treatment for the rash in the meantime [4].

Accidental Gluten

The AGA says accidents are common early on, as the diet has a big learning curve, and that even small amounts of gluten can make symptoms worse. It adds that your intestine can still be harmed even if you do not notice much after eating gluten [7]. A slip is not a failure, but it is worth working out the source with your dietitian, and contacting your doctor if symptoms do not settle [4][6]. Common hidden sources are covered in Hidden Sources of Gluten: Foods That May Surprise You.

Refractory Celiac Disease

Refractory celiac disease is rare. The BMJ review estimates it affects about 0.3 to 0.5 percent of people with celiac disease, while noting that population data are limited [8]. Definitions differ in strictness. The NHS describes it as symptoms that continue despite a gluten-free diet [1]. The NIDDK and the BMJ review add that damage to the small intestine also continues, and the BMJ review requires at least a year of strictly following the diet [4][8]. NICE says it should be diagnosed only once the original diagnosis is confirmed and gluten exposure and other conditions have been ruled out [3].

That means most people with ongoing symptoms do not have refractory disease. When it is confirmed, NICE recommends referral to a specialist center [3], and the BMJ review says care should take place at centers with celiac expertise [8]. Treatment is specialist treatment alongside the gluten-free diet [7]. Possible complications are covered in Long-Term Complications of Untreated Celiac Disease.

Looking After Your Wellbeing

NICE notes that people with celiac disease may experience anxiety and depression [3]. The AGA describes these feelings as normal responses and advises reaching out to a mental health professional right away if you have them, adding that support groups can help [7]. Practical tips for daily life are in Living with Celiac Disease: Daily Challenges and Practical Tips, and the full overview of the condition is in Celiac Disease: Symptoms, Diagnosis, Gluten-Free Diet, and Long-Term Management (Complete Guide).

Conclusion

The diet does most of the work, but regular check-ins make sure it is working. Bring a list of your symptoms, the supplements and medicines you take, and any questions about tests or vaccines to each review. If symptoms linger, a food journal reviewed with your doctor or dietitian can help find out why.

Medical Disclaimer

This article is for general information and does not replace advice from a qualified health professional. Talk to your doctor or dietitian about your own care.