The Ultimate Formula Vitamin D3 & K2 + Magnesium from FITNESSZONE is a dietary supplement designed for optimal support of bone and muscle health. This product combines colecalciferol (vitamin D3), menaquinone-7 (vitamin K2), and magnesium, three essential nutrients that work together to ensure adequate calcium absorption and maintain healthy bones. Vitamin K2 in its MK-7 form is noted for its high bioavailability, ensuring its effective function in the body. Magnesium contributes to normal muscle function and protein synthesis. This product is especially beneficial for individuals with low sun exposure and high-performance athletes, offering 120 capsules designed for prolonged delivery.