3 ms·
From an online source: "If sun exposure produces slight pinkness, the amount of vitamin D produced in response to exposure of the full body is equivalent to ing
by nikolay 4y ago
From an online source: "If sun exposure produces slight pinkness, the amount of vitamin D produced in response to exposure of the full body is equivalent to ingesting 10,000-25,000 IU."
So, getting more than 10,000 IU a day on a regular basis is crazy! But if you're severely deficient, you can take large initial doses.