Which of the following nutrients is especially critical for the elderly population?

Vitamin D is particularly essential for the elderly population for several reasons. As individuals age, their ability to synthesize vitamin D from sunlight diminishes, making it more challenging for them to maintain adequate levels. This vitamin plays a vital role in bone health by facilitating calcium absorption, which helps prevent osteoporosis—a condition that significantly affects older adults, increasing their risk of fractures and falls. Moreover, vitamin D has been linked to various other health outcomes, including immune function and reducing the risk of chronic diseases like cardiovascular disease and certain cancers. Given these factors, ensuring sufficient vitamin D intake is crucial for maintaining overall health and well-being in the elderly.