Gluten-containing foods
Grains like wheat, barley, rye, spelled, kamut, and triticale contain the protein gluten. When consuming gluten-containing foods, some people may become constipated. Additionally, some people are gluten intolerant. This is a disorder known as celiac disease or gluten sensitivity.
Gluten causes the immune system of people with celiac disease to attack their gut, severely damaging it. Due to this, those who have this condition must eat a gluten-free diet. An estimated 0.5–1% of people worldwide are thought to have celiac disease, however, many may be unaware of it. One of the common symptoms is chronic constipation. Avoiding gluten can help the gut feel better and heal. Irritable bowel syndrome (IBS) and non-celiac gluten sensitivity (NCGS) are two more conditions in which a person's gut may react to wheat. Despite not being gluten intolerant, people with these medical conditions seem to be sensitive to wheat and other grains. Before eliminating gluten from your diet if you believe it is the cause of your constipation, consult a medical professional first.