How much Vitamin A is needed to activate vitamin D?

Mudassir Ali 9 months 1 Answer 112 views

Answer ( 1 )

  1. Vitamin A does not activate vitamin D. Instead, tiny amounts of A is needed to bind vitamin D to its receptor in our genes. Apparently, the vitamin A is then recycled to be used again while the vitamin D is degraded excreted in the bile and thus lost to the system. This is why one has to replenish vitamin D stores daily but vitamin A stores are more resilient.

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