VITAMIN D3 5000IU. · Vitamin d3 5000iu (Per Serving). Olive Oil, Vitamin D3 5000iu (cholecalciferol). Vitamin D3 (cholecalciferol) - 125μg NRV% - 2500%. However, many individuals, as high as 1 in 5, experience low levels of Vitamin D, particularly during autumn and winter when sunlight exposure diminishes.