Raymond Francis often says, “If you are deficient in only one nutrient, you will get sick, guaranteed.” Although many people still focus single-mindedly on calcium, bone-building is a team sport. While calcium may be the star player, it’s ineffective and even dangerous without its teammates. If even one member of the team goes AWOL, your bones will suffer. Bones are about half mineral and half protein. Minerals give bones their hardness—an important quality if you want to stand up straight. However a large part of bone consists of “bone matrix:” flexible tissue made of collagen and studded with hard minerals. Calcium accounts for about 64% of bone’s mineral content, but phosphorus and magnesium also contribute to bone hardness. Zinc, manganese, silica and copper are used as co-enzymes in constructing bone matrix. Vitamin C is needed to create collagen. Vitamins C, D and K and the minerals boron, chromium, germanium, selenium and vanadium play various roles in what’s called bone…