The importance of high doses of vitamin D has been known in the orthomolecular world for some time. Gradually, a deluge of unambiguous research results is also convincing national and European government institutions. Both the recommended daily amounts and the maximum allowed doses continue to increase. This product contains 75 mcg of vitamin D3 (cholecalciferol), expressed in 3000 IU (international units), extracted from sheep wool fat. This extra high dose is suitable for temporary use in the winter months. In addition, this dosage is suitable in situations where there is an increased vitamin D requirement. Preferably have the vitamin D level determined and dose according to the blood values.