Question

kis vitamin ko Harmon BHI kahte hai

Answer 1

According to your question, I am totally sure it is Vitamin D.

Answer 2

Vitamin D is also called as hormone.
Vitamin D is not technically a vitamin, i.e, it is not an essential dietary factor; rather, it is a prohormone produced photochemically in the skin from 7-dehydrocholesterol (provitamin D) by the action of sunlight in most geographical locations or of artificial UV light.

The molecular structure of vitamin D is closely allied to that of classic steroid hormones (eg, estradiol, cortisol, and aldosterone) in that they have the same root cyclopentanoperhydrophenanthrene

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