Doppelherz system

VITAMIN D3 + K2

Under this generic name are hidden several forms of Vitamin K originating from different food sources: Vitamin K1, also called phylloquinone, is mainly found in green vegetables like spinach, broccoli and kale. Vitamin K2 is represented by a group of molecules called menoquinones, primarily of microbial origin. This is the reason why fermented foods like cheese and natto, a Japanese traditional dish made of fermented soybeans, contain higher amounts of Vitamin K2.

In recent years, it appeared that the different Vitamin K forms also had different effects on health: while both Vitamin K1 and Vitamin K2 are involved in proper blood coagulation, Vitamin K2 has been assigned additional functions in maintenance of bone and cardiovascular health, notably by stimulating calcium deposition in the bone tissue and by preventing vascular calcification.

Vitamin K has been involved in other far-reaching functions and its intake is currently being discussed as a preventive strategy in maintaining health while aging.

In order to support bone health it is usually recommended to take supplemental calcium after a certain age. This intervention is more effective if Vitamin K2 and Vitamin D3 are co-administered.

Doppelherz® Vitamin D3+K2 provides 100 μg Vitamin K2 as well as 35 μg Vitamin D3 (1400 IU). This combination is useful to stimulate bone mineralization while maintaining normal circulating calcium levels, thereby reducing the risk of vascular calcification.

Our advice for healthy and strong bones: take daily one tablet Vitamin D3+K2 together with Calcium 500 from Doppelherz®.