Certified Specialist in Gerontological Nutrition Practice Exam

The Recommended Dietary Allowance (RDA) for calcium in older adults over 70 years old is 1200 mg per day. This higher requirement is primarily due to the increased risk of osteoporosis and bone fractures in older adults, as the body's ability to absorb calcium decreases with age. Adequate calcium intake is crucial for maintaining bone health and preventing conditions associated with bone density loss.

In older adults, particularly those over 70, achieving the RDA helps to support optimal bone mineralization and reduce the risk of osteoporosis-related fractures. This age group may also have dietary limitations or conditions that can hinder their calcium intake, making it essential to emphasize the importance of reaching this elevated RDA.

While the other options reflect various calcium recommendations, they do not account for the increased needs of this specific age group. Thus, 1200 mg is recognized as the standard for promoting bone health in older adults.