Vitamin D3 has been proven an excellent source for bone health, teeth health, nervous system support and immune support. Combined in this 1000IU formulation with Vitamin K2, excellent for bone, muscle and heart health and Zinc Gluconate for heart health support, immune support , digestive support and many other useful benefits. Lastly incorporating vegetable glycerine for added bioavailability, moisture and sweetness. Suitable for adults as well as children.