The body synthesizes vitamin D from the sun, but you may not always get enough daily exposure. This formula delivers a potent dose of vitamin D3 + K2 to help you get the immune and overall wellness support you need, sunup to sundown.* * 5,000 IU of vitamin D3 per serving for powerful immune support, as well as support for healthy bones and teeth* * At this dosage, D3 also supports the absorption of calcium, included in this formula* * With vitamin K2 from chickpea for additional, synergistic support * D3 is the same form of this vitamin produced in the body from sunlight