Gluten avoidance has increasingly become something of a trend, with supermarket shelves now flooded with gluten-free alternatives. This has led many consumers to believe that gluten is universally harmful.
However, it is important to understand that gluten mainly causes discomfort in individuals who are sensitive or intolerant to it, particularly those who react to wheat, barley, and rye. For such individuals, consuming gluten can trigger a range of physical and even neurological symptoms.
Estimates suggest that up to 13% of the global population may experience some form of non-celiac gluten sensitivity, yet the majority remain undiagnosed. What is commonly known as gluten intolerance can be broken down into 3 categories: celiac disease, an autoimmune disorder; non-celiac gluten sensitivity, which causes similar symptoms without the autoimmune response; and a wheat allergy, an immune reaction to wheat proteins specifically.
Here are some of the most common signs of gluten intolerance. If you experience these, then it may be that you are allergic to gluten:
Bloating And Abdominal Pain
One of the most frequently reported symptoms is bloating accompanied by stomach pain. A large number of people with gluten intolerance experience abdominal discomfort due to inflammation in the digestive tract. This inflammation disrupts normal digestion, leading to gas, swelling, and pain.
Nausea And Vomiting
Stomach inflammation caused by gluten can lead to persistent nausea and, in some cases, vomiting. A key indicator is that these symptoms appear shortly after eating, particularly after a gluten-rich meal.
Nasal Congestion
Although nasal congestion is often associated with excess mucus, it can also result from inflammation in the nasal passages. If you consistently experience post-meal congestion, gluten intolerance may be an underlying cause.
Fatigue And Low Energy Levels
Tiredness is a common but often overlooked symptom. When gluten triggers inflammation, the body diverts extra energy toward managing the immune response and digestion. Additionally, gluten intolerance can lead to iron-deficiency anemia, which can significantly contribute to fatigue and sluggishness.
Depression And Anxiety
Mental health symptoms are also linked to gluten intolerance. Studies suggest that gluten may influence serotonin levels in some individuals, potentially leading to mood disturbances. A significant number of people with gluten intolerance report experiencing anxiety and depression regularly.
Migraines And Headaches
While the scientific evidence is still developing, some studies indicate that individuals who suffer from migraines benefit from a gluten-free diet. If headaches become more frequent after increasing gluten intake, it may be worth examining your diet.
Brain Fog And Confusion
Often referred to as “brain fog,” this symptom includes difficulty concentrating, forgetfulness, and mental fatigue. It is believed to be caused by the body’s immune response to gluten and the antibodies it produces.
Numbness Or Tingling In Extremities
Some individuals experience numbness or a tingling sensation in their arms and legs. This may be linked to nerve reactions triggered by gluten-related antibodies. However, since this symptom is also associated with other conditions like diabetes, a medical evaluation is essential.
Joint And Muscle Pain
Gluten-induced inflammation can extend beyond the digestive system, leading to joint and muscle pain. In some cases, individuals may also have an overactive nervous system that heightens pain sensitivity.
Changes In Bowel Movements
Digestive irregularities are a key sign. This includes diarrhea, constipation, or stools that are unusually foul-smelling and pale. These changes often result from poor nutrient absorption in the intestines.
Skin Conditions
Gluten intolerance can manifest through the skin, even without digestive symptoms. Conditions such as dermatitis herpetiformis (a blistering skin rash), psoriasis, alopecia, and chronic urticaria have all been associated with gluten sensitivity and may improve on a gluten-free diet.
Iron-Deficiency Anemia
Due to impaired nutrient absorption, individuals with gluten intolerance may develop anemia. Symptoms include weakness, dizziness, pale skin, headaches, and shortness of breath. In some cases, anemia is the first noticeable sign.
Dental Issues
There is evidence linking gluten intolerance to recurrent mouth ulcers, cavities, and weakened tooth enamel. Poor absorption of essential nutrients, particularly calcium, negatively affects dental and bone health.
Low Immunity
Gluten intolerance may weaken the immune system by reducing IgA levels, which play a crucial role in protecting the body against infections. As a result, individuals may find themselves falling sick more frequently.
Unexplained Weight Loss
Unexplained weight loss due to undiagnosed gluten intolerance can occur for several reasons. Discomfort after eating may lead to reduced food intake, while abdominal pain can make daily activities more challenging. The other is that gluten intolerance can impair nutrient absorption, so even when you do eat, your cells are not getting the fuel they need, leading them to burn fat instead.
What Should You Do Next?
Gluten intolerance may weaken the immune system, making it important to closely monitor signs and symptoms. If you suspect that you may be gluten intolerant, it is essential to consult a qualified dietitian or healthcare professional for proper evaluation and guidance.
A doctor may recommend a blood test to check for specific antibodies, followed by an intestinal biopsy if celiac disease is suspected. It is important not to start a gluten-free diet before testing, as this can affect the accuracy of the results. With the right diagnosis, many people find that their symptoms improve significantly once gluten is removed from their diet.
