I used the Green Pasture "blue ice fermented cod liver oil/high vitamin butter oil" at 4ml a day. (the reccomended dose) in conjunction with a multivitamin and i began turning yellow in 2 weeks or so, the soles of my hands were especially yellow. This is from to much vitamin A. I stopped taking it and just used multivitamin for now, still my hands remain pretty yellow, i've never had this problem. I guess it takes time for the vitamin a to be removed.