The Amazing Formulas Calcium with Vitamin D3 Dietary Supplement is a potent supplement that combines calcium and vitamin D together in easy to take softgel form. The vitamin D3 acts as an assistant to get the calcium into the body, encouraging swifter results by getting greater levels of calcium and phosphorous into the body. Calcium along with Vitamin D3 may help to promote healthier bones, teeth, nervous system and muscle health. *