A member asked:

What is the optimal vitamin a to vitamin d ratio in supplements? there has been a lot of controversy around that and cod liver oil.

A doctor has provided 1 answer

A and D: If the weather is fine and the sun shining in Peru you don't need either A or D. Just enjoy life. When the fall and winter returns you can go back to the other two.

Answered 6/15/2015

2.7k views

Thank

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