I eat them constantly-it's about all I snack on. I have not heard of them being poisonous though! You don't want to cook them or do anything to them-you want them in the raw state-not roasted or anything. Roasting them kills the benefits, from what I understand. Pumpkin seeds do not KILL parasites though-what they do is paralyze them so that they are easier to pass. You will need to do a parasite cleanse to actually kill the parasites. I like Humaworm myself, but there are a lot out there you could try.