Dr. Alok Tiwari (MBBS, MD – Physiology) is a distinguished Sports Physiologist and Clinical Nutritionist, renowned for blending medical science with fitness innovation. As the Founder of ATFS (Alok Tiwari Fit Sciences), he holds an MBBS and MD in Physiology from RGKAR Medical College, Kolkata, and currently serves as a Senior Resident at Sarat Chandra Chattopadhyay Medical College, Uluberia. Practicing across SP Mediclinic Gouranganagar, SP Diagnostics Shapoorji, and Agilus Diagnostics New Town, Dr. Tiwari is widely recognized for his minimal-medication protocols targeting chronic lifestyle diseases such as diabetes, metabolic syndrome, and PCOS. His integrative approach includes strength training, DEXA scan diagnostics, VO₂ Max testing, hormonal assessments, and cutting-edge therapies like TRT and GLP-1-based fat loss strategies.

Dr. Tiwari’s contributions go beyond clinical care—he is the creator of the “ThermoCut 1K” protocol, a safe 1000-calorie strategy for fat loss, and the ATFS HIM & HER Precision Health Program, tailored for elite couples. A certified expert in sports physiology, fertility nutrition, and hormonal balance, he is also a dedicated educator through his “Friends Residency” YouTube channel, offering guidance for MD Physiology students and ACSM aspirants. As the founder of ThesisCraft Professionals, he supports postgraduate students with academic research. Dr. Tiwari’s achievements have been recognized with numerous awards, including the Mithila Samarpan Samman, 101 Men Excellence Award, and the Shaheed Bhagat Singh International Award for his pioneering work in drug-free, fitness-based healthcare. His creative fitness projects like the Western 33 Staircase Challenge, Stamin Scuba-Trek, and documented client transformations reflect a deep commitment to performance-based, sustainable wellness.