Which change in the gastrointestinal system is typically seen in aging individuals?

As individuals age, the gastrointestinal system undergoes several physiological changes that can affect nutrient absorption. One prominent change is a decreased ability to absorb nutrients, which occurs due to factors such as alterations in gut motility, changes in the gut microbiome, and a decrease in the efficiency of digestive enzymes. This decreased absorption can lead to various nutritional deficiencies, as older adults may struggle to obtain adequate vitamins and minerals from their diet.

Changes such as increased gastric motility or digestive enzyme production are generally not characteristic of aging. In fact, gastric motility tends to decrease, which can lead to slower digestion and increased transit time through the intestines. Additionally, gastric pH often becomes less acidic with age due to reduced acid production in the stomach, which can further impact the digestion and absorption of nutrients. Therefore, the decrease in the ability to absorb nutrients is a significant concern in the aging population and highlights the importance of tailored nutritional strategies to address these changes.