1. Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source .

2. Use the D3 form ( cholecalciferol) and take it with a fat-containing meal to ensure absorption.

3. Other rodenticides may contain cholecalciferol which causes hypercalcemia and leads to heart and kidney problems.

4. In their study, the researchers tested vitamin D3, or cholecalciferol, the kind humans make when they are exposed to sunlight.

5. In this paper, we studied the effects of supplementation of different levels of cholecalciferol(VD3) and phytase in lower inorganic phosphorus diet of layers at early stage.

6. Most calcium supplements now also contain vitamin D (usually as cholecalciferol, or D3), supplying about 250 to 300 international units in two tablets.