Eidon's Multiple Minerals are a complement of all essential and trace minerals necessary for good health in a silica base.In any Multiple Mineral formula, the key to its successful formulation lies in its mineral balance. Minerals work in a precise balance or ratio to one another. Too much or too little of even a trace mineral can decrease the effectiveness of a formula by limiting the availability of the other minerals. For people with well balanced mineral ratios or those looking for a basic formula to supply a well balanced broad spectrum of the most important mineral nutrients, Eidon's Multiple Mineral formula can be an excellent addition to your nutritional program.