It depends on dose, deficiency status, and clinical goals. Confirmed vitamin D deficiency may justify daily dosing under clinician guidance. Whether K2 is added should consider diet, risk factors, and medications. For daily use, review the D3 IU amount, K2 form (MK-7/MK-4), total calcium intake, and kidney function. People on warfarin should not take K2 daily without medical supervision. Daily use should be a measured, monitored decision—not a casual habit.