OK, please bear with me as we do this one more time.... What are the benefits of laterite? I have heard two: 1. Source of iron and other metals 2. Binding site for cations 1. Wouldn't an iron supplement that had chelated iron do this? 2. Wouldn't an iron supplement that had chelated iron do this? That is, what is the "magic" of laterite? More stable? Mix of cations? Or what? Dave Gomberg, Experimenta San Francisco CA USA gomberg at wcf_com