Thanks for the info......I tried to buy algin at the store today, a pretty big supplement store, and they have never heard of it!!!Where can I buy this in Canada???I do keep my colon up to par, I take fiber, and I've had 12 colonics in the past year...just to keep the toxins coming out....Now about my 1 filling under my crown...I would have to have the tooth taken out..to get the mercury out...BUT my naturopath and mercury DR. to not think i need to remove this 1 filling.....because it is under a crown????I am so confused....thanks Sandra p