vitamin d supreme 5000 iu by designs for health - vit d3 with vitamin k (550 mcg k1 + k2 mk7) - supports immune + bone health - non gmo + gluten free supplement in bpa-free glass bottle (180 capsules) designs for health vitamin d supreme provides a powerful dose of vitamin d3 along with vitamin k as both k1 and the mk-7 form of k2. this formula contains higher doses than vitamin d synergy for situations where more aggressive repletion is required. vitamins d and k are essential for optimal bone and arterial health and for maintaining the immune system in proper balance. the amount of vitamin d and k in this formula may be beneficial for those who do not get adequate sun exposure and/or dietary sources of these vitamins. vitamins d & k work as a team. thus, increasing doses of vitamin d will increase the need for vitamin k.* <br><br>made with non-gmo ingredients.