Recommended daily supplement of vitamin D3 for females is:
**Core Concept**
The recommended daily intake of vitamin D3 is crucial for maintaining bone health, preventing deficiency, and reducing the risk of osteoporosis. Vitamin D3 plays a vital role in calcium absorption and bone mineralization. The optimal dosage varies based on age, sex, and other factors.
**Why the Correct Answer is Right**
The Institute of Medicine recommends a daily intake of 600 IU (International Units) of vitamin D3 for adults, including females, aged 19-70 years. This dosage helps maintain adequate vitamin D levels, preventing deficiency and related complications. The recommended intake is based on evidence that 600 IU/day is sufficient to maintain serum 25-hydroxyvitamin D levels within the desired range.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not correct as it is below the recommended daily intake of vitamin D3.
**Option B:** This option is also not correct as it exceeds the recommended daily intake, potentially leading to toxicity.
**Option C:** This option is incorrect as it is not the recommended dosage for females.
**Clinical Pearl / High-Yield Fact**
It is essential to note that vitamin D deficiency is common in individuals with limited sun exposure, darker skin, or those with malabsorption disorders. Supplementing with vitamin D3 can help prevent deficiency and related complications.
**Correct Answer:** C. 600 IU.