Difficulty: Easy

Average Score: 100%

What are the adequate intake levels of Vitamin D for adults ages 19-70?

Rationale

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

The recommended adequate intake of Vitamin D for adults within this age range is crucial for maintaining bone health and supporting overall physiological functions. This intake level helps ensure sufficient calcium absorption and supports various bodily functions, including immune response.

A (10 mcg (400 international units)) YOUR ANSWER

This amount is below the established adequate intake level for adults ages 19-70. While 10 mcg (400 IU) may have been an earlier recommendation, current guidelines suggest higher intake for optimal health outcomes.

B (30 mcg (1200 international units)) YOUR ANSWER

This intake level exceeds the recommended adequate intake for adults ages 19-70. While higher doses of Vitamin D may be necessary for specific health conditions or deficiencies, the standard adequate intake is lower, and excessive intake over time can lead to toxicity.

D (5 mcg (200 international units)) YOUR ANSWER

This amount is insufficient to meet the adequate intake levels for adults in this age group. Similar to option A, 5 mcg (200 IU) does not provide the necessary support for bone health and immune function as recommended by health authorities.

Conclusion

The adequate intake of Vitamin D for adults ages 19-70 is established at 15 mcg (600 international units). This level supports essential health functions, including calcium absorption and immune system performance. Options A, B, and D do not align with recommended guidelines, highlighting the importance of adhering to established intake levels for optimal health.

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