How is malnutrition related to respiratory function?

Malnutrition is significantly related to respiratory function, primarily because it can lead to the loss of respiratory muscle mass. Adequate nutrition is essential for maintaining the strength and function of the muscles involved in breathing, including the diaphragm and intercostal muscles. When an individual is malnourished, their body lacks sufficient proteins and calories to maintain muscle tissue, which can lead to muscle wasting. This decreased muscle mass and strength can impair the mechanics of breathing, resulting in reduced respiratory function.

In older adults or individuals with chronic illnesses, malnutrition can exacerbate existing respiratory conditions or increase the risk of respiratory illness. Therefore, maintaining adequate nutrition is essential for optimal respiratory health, and the link between malnutrition and respiratory function is a critical consideration in gerontological nutrition.