Which factors can influence a patient's nutritional requirements?

Nutritional requirements are influenced by a variety of individual factors, and it is essential to consider these differences when assessing a patient's dietary needs. Age is a significant factor because nutritional needs change throughout the life cycle; for example, children require nutrients for growth, while older adults may need less caloric intake but more nutrients to support overall health. Illness also plays a critical role, as certain health conditions can increase the body's nutritional demands or require specific dietary modifications. Activity level directly affects caloric needs—those who are more physically active will generally require more energy and nutrients compared to someone who is sedentary. Lastly, dietary restrictions must be considered, as they can limit certain food groups or nutrients that are necessary for the individual’s health, thus requiring careful planning to ensure all nutritional needs are met.

Other options, while they may have some impact on a patient's eating habits or preferences, do not encompass the direct physiological and health-related factors that critically influence a person's nutritional requirements.