Solving the M puzzle

Our grandparents worried about contaminated water. We should worry about contaminated lifestyles.

In just two generations, India has undergone one of the most dramatic health transformations in human history. For decades, infectious diseases like malaria and tuberculosis dominated our fears, but today, we face a different enemy: metabolic disease. This transition didn’t happen overnight; it has been building for decades, quietly transforming our bodies from within.

I witnessed the tragic reality of this shift in my own family. At just 49, my brother-in-law — a man with no apparent symptoms that would drive him to seek medical attention — suffered a fatal cardiac event. He never suspected that metabolic dysfunction was steadily damaging his heart. His story is not unique; it reflects a national crisis that has become increasingly apparent with each passing year.

Why do metabolic diseases hit our population so hard? The answer lies in what researchers call a “perfect metabolic storm”— a unique convergence of genetic, environmental, and lifestyle factors. To understand the scope of this crisis, however, we must first unlearn what we think sickness looks like.

Thin on the outside, sick on the inside

First, we must look beyond standard definitions of obesity. While researching, I encountered the “Asian Indian Paradox”— the puzzling observation that Indians develop metabolic disorders like diabetes and heart disease at lower body weights than people of European descent. This explains why even seemingly “normal weight” Indians can harbour dangerous levels of metabolic dysfunction.

We tend to accumulate fat centrally, around our organs, rather than under our skin. This visceral fat, invisible from the outside, is metabolically active tissues that produce inflammatory compounds and disrupt insulin signalling. This is why the standard Body Mass Index (BMI) cutoffs had to be revised downward specifically for Indians; what might be considered a “healthy” BMI of 25 for a European could already indicate significant metabolic risk for an Indian.

At the core of this crisis is ‘metabolic syndrome,’ also known as insulin resistance syndrome. It is a cluster of conditions — high blood sugar, high blood pressure, low “good” cholesterol, high triglycerides, and excess belly fat.

When your cells start ignoring insulin’s signals, your pancreas responds by working overtime to produce more insulin — think of it like shouting louder when someone can’t hear you. This flood of extra insulin, or ‘compensatory hyperinsulinemia,’ is the body’s desperate attempt to force stubborn cells to respond.

Unfortunately, this excess insulin triggers inflammation and promotes the storage of dangerous fat around your organs. This creates a vicious, self-reinforcing cycle that leads to coronary heart disease and type 2 diabetes.

In my experiments using Continuous Glucose Monitors (CGMs), I’ve witnessed this dysfunction firsthand: seemingly fit individuals with normal BMIs show dramatic blood glucose spikes after meals, indicating underlying insulin resistance that standard health checks miss entirely.

This biological reality reveals a dangerous blind spot. I receive messages daily from people like Anil, a 42-year-old manager in Noida who looks fine on paper but feels his body shutting down by 3 pm every day. Despite physical symptoms like fatigue, frequent cravings, dark discolouration on his neck (Acanthosis nigricans), and unexplained weight gain, his standard blood tests came back “normal.”

Anil’s confusion reflects what millions of Indians are quietly discovering: the gap between feeling unwell and what standard tests can detect. This disconnect allows metabolic dysfunction to progress undetected for years.

The diabetes iceberg

When I first learned that India was the global diabetes capital, it struck me as hyperbole. How could a country with ancient traditions of vegetarianism and yoga lead the world in the prevalence of lifestyle diseases? Yet the numbers tell a different story. A major 2023 study published in The Lancet revealed that 101 million Indians now have diabetes. Even more concerning, another 136 million have prediabetes.

Combined, nearly 1 in 4 Indians face severe metabolic dysfunction. Most alarming is that nearly 57% of these cases remain undiagnosed. This is the “Diabetes Iceberg”: visible diagnoses are just the tip, while a massive population of undiagnosed and pre-diabetic individuals lies beneath the surface.

Metabolic dysfunction does not stop at blood sugar; it ripples through every organ system.

l The Liver: Non-alcoholic fatty liver disease (NAFLD) now affects approximately one in three urban Indians. It forms a dangerous feedback loop: liver fat impairs insulin action, promoting further fat accumulation. My brother-in-law was diagnosed with fatty liver five years before his death, but the severity of the connection to cardiovascular risk was not understood.

l The Heart: Cardiovascular disease is now India’s leading killer, accounting for 27% of all deaths. The average age of a first heart attack in India is 53 years — a full decade earlier than in developed countries. Tragically, nearly 40% of heart attacks in India occur in people under 55.

l Reproductive Health: The crisis attacks our most intimate functions. Polycystic ovarian syndrome (PCOS) affects up to 22.5% of Indian women in some regions, intimately linked to insulin resistance. Similarly, erectile dysfunction (ED) is rising among young men; nearly 25% of patients with ED are now below 30. These are not isolated issues; they are early warning signs of vascular and metabolic distress.

A crisis that’s getting younger

This timeline is accelerating. Metabolic syndrome, once considered a disease of older adults, is increasingly being diagnosed in young adults and even adolescents. Recent data reveal that roughly 13% of those aged 18-29 years already have metabolic syndrome. Even among adolescents aged 10-19, the prevalence is 5.2%.

Why are today’s younger Indians so susceptible? It’s a collision of our genetic predispositions and rapid lifestyle changes. Our bodies, evolved to survive food scarcity, are now drowning in an environment of abundance.

Five key factors are driving this:

l Nutritional Transition: Fast food consumption in urban areas has increased by over 40% in the past decade alone.

l Physical Inactivity: Over 54% of urban Indian youth engage in less than 30 minutes of physical activity per day.

l Sleep Disruption: Average sleep duration has decreased by approximately one hour over the past two decades.

l Environmental Factors: Rapid urbanisation has increased exposure to pollution and endocrine-disrupting chemicals.

l Stress: Chronic stress in competitive environments triggers the release of cortisol, which promotes visceral fat accumulation.

This produces an “amplification effect,” where each risk factor potentiates the others, hitting the younger generation harder than ever before.

Cost of inaction

This physical suffering is compounded by a devastating economic reality. When my brother-in-law was hospitalised, the ICU costs alone averaged Rs 25,000 per day. For a middle-class family, the cost of treating diabetes alone can consume 5-25% of their household income.

Research indicates that nearly 80% of the costs of metabolic diseases are borne directly by patients. This leads to “distress financing”— borrowing money or selling assets — which affects a large number of patients. The economic shock can be crippling, forcing families to compromise on education, housing, and nutrition. At a national level, the implications are dire. India’s annual cost of diabetes treatment is projected to reach Rs 1,26,000 crore in the near future. Because the highest growth in diabetes is occurring in the 45-64 age group — people in the peak of their productive lives — this crisis threatens to undermine India’s demographic dividend.

Why we can’t afford to wait

The true tragedy isn’t just the financial cost; it’s that these devastating outcomes are largely preventable. We are facing a “slow-motion pandemic” that develops over decades.

Our current healthcare paradigm is structured to react, not prevent. The standard annual check-up relies on backwards-looking indicators like fasting glucose and HbA1c. If these numbers are “normal,” we are sent home. But this is like installing a fire alarm that only rings after the house has been burning for hours. Insulin resistance can begin developing up to 20 years before blood glucose levels register as “pre-diabetic”.

Our system rewards treatment over prevention. Insurance covers expensive insulin therapy, but rarely covers nutritional counselling or continuous glucose monitoring that could prevent the disease entirely.

The statistics I have shared represent real lives and real suffering. But the situation is not hopeless. Research shows that metabolic dysfunction is reversible in its early stages through lifestyle interventions.

We must shift from a reactive mindset to a proactive one. We need to look beyond glucose and understand insulin. Modern technology allows us to see how our metabolism responds to food, stress, and sleep in real-time, detecting dysfunction years before conventional tests do. My family’s experience taught me a hard lesson: in the realm of metabolic health, the most dangerous words are “everything looks normal”.

The moment to act is not when symptoms become unmistakable, but now, when the whispers of metabolism can already be heard. In the battle against this silent epidemic, time is our greatest ally — if we choose to use it well.

The author is a certified metabolic health coach and creator of a popular Instagram community. His book ‘Sick Nation: Inside India’s Lifestyle Disease Epidemic and How to Fix It’ was recently released by Wyzr Publishing.

Disclaimer: The article is for information purposes only. Readers are advised to consult a qualified healthcare professional for any medical advice or treatment.