Vitamin K (MK-7) contained in the Menachinox K2 + D3 product was obtained naturally in the biofermentation process using Bacillussubtilis ssp natto bacterial cultures. Vitamin K (MK-7) helps maintain healthy bones. It has been scientifically confirmed that vitamin D helps in: maintaining the proper level of calcium in the blood, proper absorption and use of calcium and phosphorus, proper functioning of muscles and the immune system.