And unless someone convinces me otherwise I plan on taking a bath with 2oz to start. This is a lot cheaper that 10 dollars a pound. Most of the time what I have found is that big website equals a more expensive product. I realize however that the "natural" mined stuff is probably the best. But if I find out that this sold for fish stuff is from the earth too well then I think it will be decided rather quickly which route to take to boost the Mag levels in the body!