Food intolerances are much more common than we realize. Things like gluten, lactose, or caffeine intolerances are some of the common food intolerances. According to the Cleveland Clinic about 6% of the US population is gluten intolerant, but did you know your gluten intolerance could be psychological more than a physical problem? Some people who believe they have gluten intolerance may actually be experiencing symptoms due to their beliefs, rather than the gluten itself. A recent small study published in The Lancet Gastroenterology and Hepatology, suggests that for some with irritable bowel syndrome (IBS), their mind might be playing a trick on them. How Psychology Affects Gluten Allergy In the recent experiment, individuals diagnosed with IBS who thought they were sensitive to gluten reported feeling worse after eating a cereal bar, even when the bar contained no gluten or wheat. Their symptoms were similar whether they ate a gluten-free bar, a gluten-containing bar, or a whole wheat bar. This suggests that what people expect or believe about food, rather than the ingredients themselves, could be causing their digestive problems. Understanding the "Nocebo Effect" This phenomenon is known as the "nocebo effect," which is the opposite of the placebo effect. While a placebo makes you feel better because you expect to, the nocebo effect means that negative expectations can trigger real physical symptoms. A senior researcher in the study explained that not everyone who believes they react to gluten truly does. While some people genuinely have a sensitivity, for many others, their conviction that gluten is harmful is what drives their symptoms and leads them to avoid gluten-containing foods. Gluten: What It Is and Why It Matters Gluten is a type of protein found in grains such as wheat, barley, and rye. For some people, eating gluten can genuinely cause problems with their digestion. This happens if they are allergic to the protein or if their body's defense system (immune system) reacts to it in a way that harms their gut. However, the recent study suggests that for many people who experience IBS symptoms, gluten might not always be the real cause. Role of Social Media and Control Researchers think that websites and social media platforms might be making people believe that gluten is bad for them, even when it's not the actual reason for their IBS symptoms. All the negative comments about gluten online can really influence what others think. Also, some people with IBS might feel that by avoiding gluten, they are taking charge of their health, especially if they usually feel helpless about their condition. Interestingly, even after the study participants learned which food bars actually caused their symptoms, many of them didn't change what they believed or how they ate. Beyond Dietary Restrictions This suggests that simply telling patients, "Gluten isn't the problem," might not be enough. Instead, getting help like therapy or coaching could be necessary to help these individuals change their negative ideas about gluten. Experts believe that helping these patients better means more than just giving them facts. Many could benefit from mental health support and advice to help them see gluten and wheat as harmless again, and to safely add these foods back into their diet. More studies involving larger groups of people are needed to confirm these findings. We also need to understand exactly why a person's beliefs about gluten can cause real IBS symptoms in some cases.