Which question would best assess a patient's dietary habits?

The question that best assesses a patient's dietary habits is, "How is your diet?" This inquiry directly invites the patient to reflect on their eating patterns, food choices, and overall nutritional status. It allows for a broad discussion about what they typically consume, any dietary restrictions they may have, and any goals or concerns regarding their nutrition. This information is crucial in understanding how dietary habits may be impacting the patient's overall health and mobility.

In contrast, the other options focus on different aspects of the patient's life that do not relate specifically to dietary habits. For instance, questions about hobbies, safety at home, or exercise habits do not provide information about the foods a patient eats or their nutritional practices. Understanding dietary habits is a vital component of holistic patient care, especially in contexts where mobility and overall health are influenced by nutrition.