Vitamin D is vital for many functions in our bodies, and higher blood concentrations of vitamin D are associated with good health and strong bodies. In fact, many researchers are now calling for the Recommended Daily Intake of vitamin D to be raised and for good reason. Carlson DDrops- 1000 I.U is a highly concentrated liquid vitamin D. Receive 1000 IU in just one drop. Carlson Ddrops- 1000 I.U is tasteless and offers a convenient way to experience the healthy benefits of vitamin D. Each bottle has 365drops or 10ml. Vitamin D has an important role in promoting calcium absorption, supports healthy immune system function and healthy mood.