People with lactose intolerance have difficulty digesting lactose, a sugar found in milk and many dairy products. However, aged cheese can be consumed by these individuals without causing significant digestive discomfort. This is because the aging process significantly reduces the lactose content in the cheese.
During aging, the lactose in cheese is broken down by natural bacteria and enzymes. This process takes weeks, months, or even years, depending on the type of cheese. As the cheese matures, the lactose level decreases considerably, making it easier to digest for people with lactose intolerance. Cheeses such as Parmesan, Cheddar, Gouda, or aged Gruyère are often well-tolerated by those with this condition.