Which disease does NOT impact an older adult's ability to eat?

Hypertension is primarily a condition that affects the cardiovascular system and does not have a direct impact on an older adult's ability to eat. It is associated with high blood pressure, which may necessitate dietary modifications, such as reducing sodium intake, but it typically does not impair physical functions related to eating, such as chewing and swallowing.

In contrast, conditions like stroke, dysphagia, and Parkinson's disease are known to significantly affect an individual’s ability to eat. A stroke can lead to various degrees of impairment, including difficulties with swallowing or motor control that can make eating challenging. Dysphagia specifically refers to difficulty swallowing, which directly impacts an individual's ability to consume food safely and effectively. Parkinson's disease affects motor function, which can lead to tremors and coordination issues that complicate the act of eating and swallowing. Therefore, while hypertension may influence dietary choices, it does not fundamentally impair the physical ability to eat, making it the exception among the conditions listed.