Which factor decreases the appetite in older adults?

In older adults, a decrease in saliva can significantly impact appetite. Saliva plays a crucial role in the digestion process, aiding in the breakdown of food and making it easier to swallow. When there is less saliva produced, it can lead to difficulty chewing or swallowing, as well as a reduction in the overall enjoyment of eating. This diminished pleasure and functionality can naturally lead to a decrease in appetite.

Furthermore, a decrease in saliva can also contribute to dry mouth, which not only makes eating uncomfortable but can also affect taste perception. As a result, the experience of eating becomes less satisfying, further leading to a decline in food intake and appetite among older adults. Therefore, understanding the role of saliva in maintaining appetite is essential in addressing nutritional needs in this population.