“…36 Indian continent has chronic energy deficiency and deficiencies of vitamin A, folate, riboflavin, iodine and iron which add risk of cancer as high dietary fibre, vitamins C, E and A, and selenium offer protection against cancer. 15,27,32,37 Viral infections related prevalence of oral cancers is less, but they exist. Human papillomavirus (HPV) usually cause cervix cancer, but studies suggest that it is associated with oral cancer.…”