This is a plant-based multi-mineral formula containing pure brassica, a cruciferous vegetable & member of the broccoli family. This edible vegetable has been hydroponically grown in a mineral-rich environment. Plants in the brassica family are also known to contain other antioxidant phytonutrients, which have been linked to enhanced immune function. The research evidence on some of these minerals indicates that they are far better absorbed & utilised than any other products on the market.