Clinical Nutritionist Practice Test 2025 - Free Practice Questions and Study Guide

Dry mouth, medically known as xerostomia, can significantly impact a patient's nutritional status due to its effects on both swallowing and digestion. Saliva plays a crucial role in the initial stages of digestion and in the process of swallowing food. When the mouth is dry, there is insufficient saliva to moisten food, which can make it difficult to chew and swallow.

The lack of saliva not only complicates the mechanical aspect of swallowing but also affects the enzymatic breakdown of food. Saliva contains enzymes like amylase that start the digestion of carbohydrates in the mouth. Without adequate saliva, patients may experience discomfort while eating, may be less inclined to consume food, and may even opt for softer, less nutritious foods that are easier to swallow. This can lead to a decreased overall intake of calories and essential nutrients, significantly impacting their nutritional health.

Thus, the correct answer highlights the critical relationship between saliva production and the overall ability to consume and digest food effectively, illustrating the implications that dry mouth has on a patient's nutrition.