What is the role of probiotics in geriatric nutrition?

The role of probiotics in geriatric nutrition primarily revolves around promoting gut health and improving digestion, making this the correct answer. Probiotics are live microorganisms that, when consumed in adequate amounts, confer health benefits to the host, particularly in the maintenance of a balanced gut microbiome. In older adults, this is especially important as the gut microbiota can change with age, leading to digestive issues and other health problems.

Probiotics can enhance the digestion and absorption of nutrients, potentially alleviating issues such as constipation, diarrhea, and bloating, which are common in the elderly population. By supporting a healthy gut environment, probiotics also help facilitate the growth of beneficial bacteria, which can play a significant role in overall immune function, nutrient absorption, and even mental health.

In contrast, the other options do not accurately represent the primary function of probiotics. Increasing calorie intake is not a direct effect of probiotics and is not typically a focus in geriatric nutrition, where maintaining a balanced diet is crucial. While some might think of appetite suppressants as beneficial, this does not align with the intent behind using probiotics, which is more focused on health benefits rather than appetite control. Additionally, while maintaining hydration is essential for older adults, probiotics do not directly prevent