I getGarden of Life Olde World Icelandic Cod Liver Oil at Amazon. Take it now and then. Pricey but reliably safe product. Also eat wild-caaught Alaskan salmon, a natural source. Safeway has it in the freezer. I would not eat any salmon that isn’t from Alaska. Neighbors Darlene and John buy salmon from China. They both recently were diagnosed with cancer. Cause and effect? Maybe.
we refuse to eat farmed fish or shrimp: we kept getting ill eating the cheap stuff and finally figured it out ...
exceptions are farmed oysters and farmed yellow tail, both of which are farmed in the ocean, rather than in mud puddles like everything else ...