Long-term aspirin use by an elderly person could increase the need for what nutrient?

Long-term aspirin use in elderly individuals can increase the need for vitamin K. This is because aspirin can interfere with the absorption and utilization of vitamin K, which is essential for blood clotting and bone health. Additionally, the potential for gastrointestinal bleeding associated with aspirin use may further necessitate adequate vitamin K levels to support healing and maintain proper blood coagulation.