A hidden condition affects 1 in 3 Indians and is responsible for six of the nation's top ten causes of death. Shockingly, 99% of Indians have never been tested for it.

This condition, insulin resistance, silently harms families nationwide.

Doctors treat diabetes, heart disease, PCOS, obesity, fatty liver, stroke, and Alzheimer's as separate diseases, but miss what connects them all. Conventional medicine measures the wrong markers. By the time fasting glucose shows "prediabetes," insulin resistance may have been damaging the body for years. Medicine waits for disease; prevention is crucial.

Indians are genetically predisposed to these conditions. Genes that once aided survival now increase vulnerability to insulin resistance. Rapid dietary shifts, stress, and sedentary lifestyles fuel a growing epidemic.

Insulin resistance is reversible—if detected early.

Sick Nation presents a proactive, preventative protocol for metabolic health—designed to detect insulin resistance years before diagnosis and reverse it before chronic disease begins. Developed through extensive research, food testing, and expert consultation, this evidence-based book aims to prevent and address the condition affecting millions across India.

Inside, readers will discover:

• The metabolic link behind six deadly diseases, plus early warning signs and tests
• How famine shaped Indian metabolism and modern lifestyles increase risk
• Hidden sugars in everyday meals, why modern wheat is riskier, and how food changes impact health
• A three-pillar prevention protocol: nutrition, movement, and stress management
• A four-week roadmap to change habits—no restrictive diets or overhauls

Endorsed by top medical experts, Sick Nation is your blueprint to reclaim health before it’s too late.

About the Author

Karan Sarin is a certified metabolic health coach, former two-time startup founder, and the creator of @sweetreactions, a popular Instagram community. After his father's cardiac arrest and the loss of his brother-in-law, Karan made it his mission to raise awareness of metabolic health—especially its most common form, insulin resistance—among Indians.

Through data-driven self-experiments with continuous glucose monitoring, he distills actionable advice for thousands, including doctors and celebrities. He created Sweetreactions AI to make his testing insights actionable, providing instant meal optimizations built on hundreds of food tests, ingredient swaps, sequencing strategies, and preparation hacks that reduce glucose spikes without restrictive diets.

He lives between Berlin and Delhi with his wife and two children. Sick Nation is his first book.

EDITORIAL REVIEWS

"Karan has rightly emphasized the role of insulin resistance as the root cause of the twin epidemic of diabetes and obesity. He has nicely laid out simple things that can be done by anyone to prevent, reverse, or control it." Dr. V. Mohan, a Padma Shri recipient and Chairman of Dr. Mohan's Diabetes Specialities Centre

"A work of profound importance for India's future. An essential guide for every young Indian who wants to break the intergenerational cycle of chronic disease." Dr. Chittaranjan Yajnik, Pioneer of the 'thin-fat' Indian phenotype & Director, Diabetes Unit, KEM Hospital & Research Centre, Pune

"Most of what makes people sick comes from the food we eat and the misinformation we've been taught to believe. This book is more than a warning; it's a wake-up call—and a path forward." Dr. Eric Berg, DC, Author & Health Educator

"Explains why Indians are disproportionately affected—genetic predisposition toward insulin resistance, compounded by a diet chronically low in protein and high in refined carbs. Karan used his CGM to expose how this made India the diabetes capital of the world." Kris Gethin, Co-Founder of Kris Gethin Gyms India, trainer to Bollywood stars

"Karan Sarin connects the dots between lifestyle, metabolism, and cellular damage with rare clarity. Prevention isn't guesswork—it's understanding and working with the body's design." Dr. Alok Chopra, Functional Medicine Physician, Cardiologist & Co-founder of Aashlok Hospital

"Bold and no-nonsense. Karan calls out the root causes of obesity, diabetes, and metabolic illness with clarity and conviction. A wake-up call and roadmap for real change." Anup Singh, Pioneer of the Indian Low Carb Movement, Founder & CEO dLife HealthCare

"Written by someone who speaks our language, not a doctor. Karan's central idea—that bodies shaped by scarcity are overwhelmed by modern abundance—is profound and eye-opening. Essential, life-changing reading." Soni Razdan, Actor and Director

"A trillion-dollar opportunity where prevention, rather than treatment, will drive longevity and value creation. This book is a playbook for entrepreneurs, investors, and policymakers who want to build a healthier, more productive India." Arjun Vaidya, Co-founder, V3 Ventures & Founder of Dr. Vaidya's

"A true gift for storytelling. As an emergency physician, I see the devastating end-stage of this crisis every day. Karan's work is a powerful roadmap for addressing the roots before it becomes an emergency." Dr. Ankur Verma, Principal Consultant, Department of Emergency Medicine, Max Hospital

"When you address the true root cause instead of chasing symptoms, the body heals. A must-read for anyone ready to stop managing disease and start building real health." Dr. Malhar Ganla, Co-founder, Freedom from Diabetes and Obesity

"Both incredibly smart and incredibly simple. Karan explains it all with a clarity that is a gift. Essential reading for every Indian who wants to finally understand their health." Vandana Pathak, Actor & Entrepreneur