Question 13

15 mcg (600 international units) is the adequate intake level of Vitamin D for adults ages 19-70.

The adequate intake level of Vitamin D for adults aged 19 to 70 is 15 mcg (600 international units), which supports bone health and calcium metabolism.

A) 10 mcg (400 international units)

This option is incorrect as the intake level of 10 mcg (400 IU) is below the recommended amount for adults aged 19-70. The established adequate intake is set higher to ensure sufficient Vitamin D for overall health.

B) 30 mcg (1200 international units)

While this amount exceeds the recommended intake for adults ages 19-70, it is not the adequate intake level. The established guidelines suggest a lower intake of 15 mcg (600 IU) for this age group.

C) 15 mcg (600 international units)

This is the correct option as it aligns with the established adequate intake recommendations for Vitamin D for adults between the ages of 19 and 70, promoting optimal health.

D) 5 mcg (200 international units)

This option is also incorrect, as 5 mcg (200 IU) is significantly lower than the recommended intake level for Vitamin D for adults in this age range, which may lead to insufficient intake and associated health issues.

Conclusion

The correct answer, 15 mcg (600 international units), is the only option that meets the established guidelines for adequate Vitamin D intake for adults aged 19-70. All other options either fall below or exceed the recommended levels, highlighting the importance of adhering to the nutritional guidelines for maintaining proper health.