Anaemia is caused by the deficiency of :

Rickets is caused by the deficiency of

The disease beri-beri is caused by the deficiency of vitamin:

Deficiency of vitamin A leads to a disease known as

Which one of the following is synthesized in our body by sun rays?

The deficiency of ________ may lead to mental disability in children.

Loss of vision in darkness is associated with the deficiency of

Citrus fruits are rich in vitamin:

Calcium deficiency in the body occurs in the absence of