Sourced from cholecalciferol: Matches the form vitamin D3 is derived from in the body
Summarized by Shop
K2-D3 5000 features the most bioavailable and bioactive form of supplemental vitamin K2 available and vitamin D3 (cholecalciferol), the identical form in which vitamin D is derived in the body from cholesterol and synthesized by sunlight on the skin. Studies confirm safety and efficacy for bone and heart health.*