Hypovitaminosis D Is Almost Universal with Negligible Vitamin D2 Levels in Population from Southern Coastal Andhra Pradesh

Holick MF, Binkley NC, Bischoff-Ferrari HA, et al. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011;96:1911–30. Shivane VK, Sarathi V, Bandgar T, Menon P, Shah NS. High prevalence of hypovitaminosis D in young healthy adults from the western part of India. Postgrad Med J. 2011;87:514–8. Multani SK, Sarathi V, Shivane V, Bandgar TR, Menon PS, Shah NS. Study of bone mineral density in resident doctors working at a teaching hospital. J Postgrad Med. 2010;56:65–70. Harinarayan CV, Ramalakshmi T, Prasad UV, Sudhakar D, Srinivasarao PV, Sarma KV, Kumar EG. High prevalence of low dietary calcium, high phytate consumption, and vitamin D deficiency in healthy south Indians. Am J Clin Nutr. 2007;85:1062–7. Sinkar P, Sivapandi K, Kallathiyan K, Iyer S. Vitamin D deficiency picture: an Indian laboratory retrospective study of over 10,000 subjects. Asian J Biol Life Sci. 2018;7:93–7.