So should I be taking cod liver oil... or a supplement in pill form? I'm wondering about this info from another post by Zuleikaa:

"Only natural vitamin D (D3) should be used. Natural vitamin D has been found to be non toxic at levels of 50k/day. Manmade vitamin D (D2) has been found toxic at 20,000 IU/day. Natural vitamin D (D3) is better utilized by the body. Vitamin D (D3) comes in both a gel cap with fish oil and a dry form. Some people find the dry form is better tolerated.

Cod liver oil should not be used for this as the amount of vitamin A ingested to achieve the correct vitamin D dose would be too high. If the vitamin D has vitamin A, it should not have more than 1000 IU of A per 400 IU of vitamin D."