Which of the following is NOT a main cause of death affected by dietary choices according to the text?

Dietary choices significantly influence various health outcomes, leading to chronic diseases that are among the leading causes of death. Cancer and heart disease, for instance, are well-established conditions where nutrition plays a crucial role in both prevention and management. Research has shown that diets high in processed foods, sugars, and unhealthy fats can increase the risk of developing these diseases.

Respiratory diseases can also be influenced by diet, particularly through inflammatory responses and overall immune function. For example, nutrient deficiencies or an unbalanced diet may compromise lung health and contribute to conditions such as asthma or chronic obstructive pulmonary disease (COPD).

In contrast, while nutrition can play a supportive role in general health, influenza is primarily an infectious disease caused by viruses, which is less directly influenced by diet. The body's response to viral infections often involves other factors, such as immune response and vaccination, rather than dietary patterns alone. Thus, influenza stands apart as a cause of death not predominantly affected by dietary choices. This distinction reinforces the understanding that while diet is crucial for many chronic diseases, some mortality causes remain largely outside its direct influence.