Article Detail Who invented Vitamin D ? Answer: Edward Mellanby discovered Vitamin D while researching a disease called rickets in 1922 Similar Questions : 1. Who invented Ball-Point Pen ? Answer: John J. Loud of U.S.A. in 1888 2. Who invented Circulation of blood ? Answer: William Harvey of Britain in 1628 3. Who invented Java Language ? Answer: James Gosling 4. Who invented Vitamin C ? Answer: Scottish naval surgeon James Lind in 1747 5. Who invented Penicillin ? Answer: Alexander Fleming of Britain in 1928. 6. Who invented Transformer ? Answer: Ottó Bláthy 7. Who invented Gramophone ? Answer: Emile Berliner in 1887. Read more from - Important Inventions