What role does fiber play in the diet of older adults?

Fiber plays a vital role in the diet of older adults primarily by helping prevent constipation and aiding digestion. As individuals age, gastrointestinal motility often decreases, leading to increased occurrences of constipation. Adequate fiber intake promotes regular bowel movements by adding bulk to the stool and facilitating its passage through the intestines. Additionally, fiber helps to maintain a healthy gut microbiome and can improve overall digestive health, which is crucial for nutrient absorption and overall well-being in older adults.

Furthermore, fiber contributes to feelings of fullness or satiety, helping to manage weight and prevent overeating. Including a variety of fiber sources—both soluble and insoluble—can also be beneficial for heart health, as some types of soluble fiber can help lower cholesterol levels.

Understanding the benefits of fiber is particularly important for gerontological nutrition, as older adults may have unique dietary needs and challenges.