Unfortunately, it’s not unusual to have low levels of the vitamin. While there isn’t a consensus on the ideal amount of ...
When vitamin D2 is consumed, the liver turns it into 25-hydroxyvitamin D2 (ercalcidiol), while vitamin D3 is turned into 25-hydroxyvitamin D3 (calcidiol). Together, these compounds are known as ...
In the liver, vitamin D3 is hydroxylated to form 25-hydroxyvitamin D3 (25(OH)D3), the main circulating form of vitamin D3. This compound is then further hydroxylated in the kidneys to form 1,25 ...