
B12 Results 150-900: What Your Number Means (2026)
Your B12 results fall into 7 ranges requiring different actions. Learn what levels 150-900 pg/mL mean, why the gray zone matters, and exact protocols based on 2026 lab standards.
Board Certifications: Internal Medicine (1998); Endocrinology, Diabetes & Metabolism (2001)
Experience: 27 years | Location: Chennai, India
Education: MBBS, Madras Medical College (1995); MD Internal Medicine, CMC Vellore (1998); DM Endocrinology, AIIMS New Delhi (2001); Advanced Diabetes Management, Joslin Diabetes Center, Harvard (2005)
Dr. Vikram Nair is one of South India's most experienced endocrinologists, with an exceptional 27-year career managing complex hormonal disorders and pioneering Type 2 diabetes reversal protocols. Having treated over 30,000 diabetic patients and performed more than 5,000 thyroid ultrasounds, Dr. Nair brings unparalleled clinical depth to metabolic disease management.
After completing his DM in Endocrinology at AIIMS, Dr. Nair pursued specialized training at Harvard's Joslin Diabetes Center, where he studied intensive insulin therapy and continuous glucose monitoring systems. His groundbreaking work on diabetes remission through very-low-calorie diets and bariatric surgery has been published in Diabetes Care, The Lancet Diabetes & Endocrinology, and the Journal of Clinical Endocrinology & Metabolism.
Dr. Nair established Chennai's first comprehensive diabetes care center in 2008, integrating endocrinology, nutrition counseling, and diabetes education under one roof. His patient outcomes consistently exceed national benchmarks, with 78% of his Type 2 diabetes patients achieving HbA1c targets compared to the national average of 35%.
Beyond clinical practice, Dr. Nair is a passionate medical educator who conducts monthly continuing education sessions for primary-care physicians across Tamil Nadu on topics including insulin optimization, thyroid nodule management, and adrenal disorders. He has trained over 400 doctors through his CME programs and has served as an examiner for the National Board of Examinations in Endocrinology.
As Senior Endocrinology Advisor at My Medicine Advisor, Dr. Nair ensures all diabetes, thyroid, and hormone-related content reflects cutting-edge evidence and practical clinical wisdom. He is actively researching the role of intermittent fasting in metabolic syndrome reversal and serves on the scientific advisory board of the Endocrine Society of India.
Professional Affiliations: Endocrine Society (USA); American Diabetes Association; Endocrine Society of India; Indian Thyroid Society
Publications: 6 book chapters on diabetes management
Awards: Lifetime Achievement Award, Endocrine Society of India (2023); Best Endocrinologist Award, Tamil Nadu Medical Council (2018, 2022)
Languages: English, Hindi, Tamil, Malayalam
Knows about: Type 2 diabetes reversal and management; thyroid disorders (hypothyroidism, hyperthyroidism, nodules); insulin pump therapy and CGM; polycystic ovary syndrome (PCOS); metabolic syndrome; osteoporosis and bone health; pituitary and adrenal disorders; obesity medicine

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