..."As you get older, your lactose levels can start to decline, which means there’s nothing stopping the lactose you consume from going to your colon undigested, where bacteria break the sugars down and create excess gas and fluid in the process. It is common to develop a lactase deficiency in adulthood. In fact, about 65 percent of the global population has a reduced ability to digest lactose, according to the National Institutes of Health (NIH)."...