Is gluten sensitivity the same as celiac disease?

No, gluten sensitivity (sometimes known as non-celiac gluten intolerance) is not the same as celiac disease, although both conditions involve problems with gluten and can cause some similar symptoms, such as abdominal pain and fatigue [3]. The main difference is that celiac disease causes damage to the lining of the small intestine, whereas gluten sensitivity does not cause this damage [3].

Gluten is a mixture of proteins found naturally in wheat, rye, barley, and cross-breeds of these grains [1]. For people with celiac disease, the body's natural defense system reacts to gluten by attacking the lining of the small intestine. Without a healthy intestinal lining, the body cannot absorb the nutrients it needs, which can lead to stunted growth and nutrient deficiencies, and may result in conditions such as anemia and osteoporosis [1]. Other serious health problems associated with celiac disease can include diabetes, autoimmune thyroid diseases, and intestinal cancers [1].

Symptoms of Gluten Sensitivity and Celiac Disease

Despite the fundamental differences, gluten sensitivity and celiac disease share some symptoms. Gluten sensitivity can cause digestive symptoms such as gas, diarrhea, and constipation, as well as abdominal pain and fatigue. Other symptoms may include headaches, joint pain, and skin rashes [3].

As for celiac disease, in addition to digestive symptoms, it can lead to more serious symptoms due to damage to the small intestine, such as malabsorption that causes nutrient deficiencies [1].

Diagnosing the Two Conditions

It is very important to rule out celiac disease before diagnosing gluten sensitivity. If your healthcare provider suspects you have gluten sensitivity, they may suggest stopping gluten intake to see if symptoms disappear [3]. However, tests must be performed to ensure you do not have celiac disease first [3]. This can be done via a blood test or by taking biopsies from the small intestine [3].

Food allergy tests, such as skin or blood tests, are useful for determining if symptoms are caused by a true food allergy, which is different from gluten sensitivity and celiac disease [2]. A food allergy involves the immune system and can be life-threatening, while food intolerance or food sensitivity (such as gluten sensitivity) usually affects only the digestive system and is rarely life-threatening [2].

Living with Gluten Sensitivity

Symptoms of gluten sensitivity usually improve by following a gluten-free diet [3]. It is essential to ensure you are getting enough vitamins, minerals, and fiber when following this diet [3]. Your healthcare provider or a dietitian can help you plan your diet [3].

For people with celiac disease, the only way to manage the disease is to avoid consuming gluten entirely [1]. Foods labeled "gluten-free" must contain less than 20 parts per million of gluten [1]. This level is the lowest that can be consistently detected using valid scientific analytical tools, and most people with celiac disease can tolerate very small amounts of gluten at this level [1].

For more information on this topic, you can visit Gluten Sensitivity (Gluten Intolerance): The Difference from Celiac Disease and How to Live with It (Arabic).

When to Seek Medical Help

If you suspect that you have gluten sensitivity or celiac disease, it is important to consult a healthcare provider to evaluate your symptoms and make the correct diagnosis. Do not start a gluten-free diet before diagnosis, as this may affect the accuracy of test results [3].

In cases of severe food allergy, life-threatening allergic reactions called anaphylaxis can occur. Symptoms of anaphylaxis include difficulty breathing, rapid heartbeat, and swelling of the tongue, lips, or throat. If these symptoms appear, you must seek emergency medical help immediately [2].

Medical references

• Gluten Sensitivity
• 'Gluten-Free' Means What It Says
• Food Allergy Testing