Upgrade Your Vitamin D - Each small easy-swallow capsule features clinically relevant amounts of bioavailable vitamin D with K. Features an impressive 2000 mcg of vitamin K1 and K2. GG is also included as a complementary bone, healthy aging and immune support supplement.* | Superior K2 Form - This vitamin K2 + K1 supplement features K2 in the premium MK-4 form. Vitamin D and K work synergistically, thus, increasing vitamin D increases the need for vitamin K.* | Why Add GG to Vitamin D with K2? Geranylgeraniol is a compound produced naturally in the body that declined with age. It is included in this D3 vitamin complex to help promote optimal bone and heart health, maintain proper immune system balance and vitamin K status. | Immune, Bone + Cardiovascular Support - Vitamin D3 K2 can support optimal cardiovascular health, and help maintain healthy immune system balance. A quality vitamin D supplement can also be used as a mood support supplement and help optimize calcium absorption and utilizations.* | Clinically-Trusted Care - DFH is the #1 practitioner supplement brand recommended by functional medicine professionals and the #1 practitioner supplement brand personally trusted by functional medicine professionals.**