Sucrose intolerance refers to the body's inability to properly digest sucrose, commonly known as "table sugar." This type of sugar is found not only in cane sugar but also in maple syrup, various fruits, legumes, and some vegetables. A crucial enzyme called "sucrase-isomaltase," located on the surface of small intestine cells, normally breaks down sucrose so it can be absorbed into the bloodstream. When there's not enough of this enzyme, undigested sucrose moves into the colon, where gut bacteria break it down, leading to symptoms like gas, bloating, diarrhea, and discomfort. Formerly considered rare and mainly seen in childhood, sucrose intolerance can affect a larger portion of the population, persisting into adulthood and often being misattributed to other digestive issues like irritable bowel syndrome (IBS). The condition is typically genetic, but it can also result from inflammation or infection of the small intestine, which can be treated to restore normal digestion.