Vitamin D primarily promotes bone and immune health***. However, it can also benefit calcium absorption, as well as help support our immune defenses***. At Country Life, we offer you a wide range of forms (capsules, softgels, liquid and dry) and potencies (from 1000 I.U. to our most popular 5000 I.U.). Vitamin K-1 is the natural form of vitamin K, primarily found in dark leafy vegetables, and the primary source of vitamin K to humans through dietary consumption. Vitamin K plays a special role in the production of blood-clotting proteins***. Our Vitamin A products come in both tablet and softgel forms, in addition to specialized formulas accompanied by vitamin D3 and our Vitamin C products come in a wide array of capsules, chews or tablets.