To kill parasites, I went to health food store & purchased Cod Liver Oil Capsules. I took them out of the bottle & put them into a freezer bag & threw them into freezer. It takes them about a week or so to freeze. Then I took 2 capsules a day. Taking the capsules this way prevents bowel disruptions. What actually happens is the frozen cod liver oil capsules do not unthaw until they hit the small intestines where most parasites hide. I did this for a couple of weeks just to make sure I got them all.