Vitamin D3 (cholecalciferol), known as the “sunshine vitamin,” is produced when UVB rays hit the skin. It aids in calcium and phosphorus absorption, supporting bone and teeth health. Vitamin K2, a fat-soluble vitamin, is vital for blood clotting and bone metabolism. It exists in three forms: K1 (from plants), K2 (produced by gut bacteria), and K3 (synthetic). Research shows Vitamin K2 plays a key role in protecting bone strength.