OstroVit Vitamin D3 1000 + K2 is a dietary supplement in tablets. This product combines two fat-soluble vitamins: vitamin D in the form of cholecalciferol and vitamin K in the form of menaquinone-7-MK-7 derived from Bacillus subtilis natto, to supplement the daily diet of adults. Get to know vitamins D and K betterD contributes to the proper absorption/utilization of phosphorus. It contributes to the maintenance of normal blood calcium levels. It contributes to the maintenance of healthy teeth and bones. It also contributes to the proper functioning of the immune system.participates in normal blood clotting. Contributes to maintaining healthy bones. The recommended daily dose of the OstroVit formula is 1000 IU of vitamin D and 50 µg of vitamin K. The package contains 100 tablets, which will provide over six months of daily supplementation with two vitamins important for bone health. Consuming one tablet daily will achieve the beneficial effect resulting from the declared effects.