What are the energy requirements for healthy older adults?

The energy requirements for healthy older adults are determined by various factors, including basal metabolic rate, activity level, and overall health status. The correct answer identifies appropriate caloric intake ranges for both men and women, aligning with established guidelines in gerontological nutrition.

The energy requirements provided in this correct choice recognize that older adults typically have lower energy needs due to a decrease in muscle mass and physical activity, yet still require adequate calories to maintain health, support immune function, and promote overall well-being. By specifying a caloric intake of 18-22 kcal/kg for women and 20-24 kcal/kg for men, this answer captures the generally accepted recommendation that accounts for differences in body composition and typical activity levels between genders.

This range ensures that older adults receive sufficient nutrients without excess caloric intake, which can lead to weight gain and associated health problems. Maintaining a balanced diet that meets these energy requirements is vital for the prevention of malnutrition and the promotion of optimal health in older adults. Thus, this choice effectively reflects the nutritional science specific to the geriatric population and supports overall health maintenance.