>2. 15 minutes of full body exposure in noon sun is equivalent to a dose of ~20,000 IU D3 Define "full-body exposure", please? I'm not going to walk around na

>2. 15 minutes of full body exposure in noon sun is equivalent to a dose of ~20,000 IU D3 Define "full-body exposure", please? I'm not going to walk around naked outside in the sun.