New! Osteo Protect Plus still has the 1000mg of calcium as in the original formula and the many essential cofactors aiding calcium to support healthy bones and cardiovascular system and strong teeth. By adding Vitamin K to further compliment & assistance and we've also included Soy isoflavones for this use, specifically ipriflavone which has an important role in maximizing bone mineral density & to help inhibit bone loss. When taken with Calcium, the synergistic result is greatly improved than simply taking Calcium alone.