Human body needs number of minerals and other essential vitamins to fulfill the needs which are very important. There are various sources of getting these things easily. But the main thing is that human body needs these things in form of eatables or at least in form of digestible for the human digestive system.

Vitamin d and calcium both are quite necessary for human body as these two are responsible for the development of skeleton and strength of bones. Vitamin d is required by the young growing children for their growth and development of skeleton. In the same way calcium is most important mineral needed by human body it is required by the bones and teeth for their strength. Also it improves bone density.

Vitamin d and calcium are not commonly present in nature in the form of eatable to be acquired to fulfill the needs of human body. Sunlight is the most prominent source of vitamin d but nowadays it is not possible for everybody to get him/her exposed to sunlight to fulfill the need of vitamin d. So other sources of getting vitamin were explored by scientists to overcome this issue. The important food sources of vitamin d are eggs yolk, milk, fish oils, mushrooms and derivatives of milk. In the same way, calcium is not present in nature in the form of eatables. Also not as much present in our daily meal as much it is needed by the body. Calcium is present in milk and its derivatives and beside theses oranges and in dry fruits.

Vitamin d and calcium both are a bit a rare and much necessary for the strength of body. Most importantly both are used in the treatment for cancer after the operation and removal of cancerous cells. New cells of body are protected from the effect of cancer by both these. This we can say as a major use of it.

Deficiency of Vitamin d and calcium in our daily food is the main reason for many diseases. We can overcome it by using the supplement of Vitamin d and calcium. Supplements are used at a large scale all around the world and researches on the betterment of supplements is still going on. Here it is necessary to mention that supplements have calcium and vitamin d together. In these supplements the toughest thing is to get calcium from the rocks of costal areas and converting it into eatable form.