Study Finds South Asians Develop Type-2 Diabetes Decade Earlier Than Europeans
South Asians, including Indians, develop Type-2 diabetes nearly a decade earlier than white Europeans and at a lower body mass index, according to an expert opinion study published in the journal 'Diabetes, Metabolic Syndrome and Obesity'. The findings, compiled from 60 diabetologists and endocrinologists across India with clinical experience spanning 15 to 35 years, link the disparity to a unique 'South Asian phenotype' combined with widespread dietary imbalances.
Medical experts reported that South Asians present higher insulin levels, increased insulin resistance, and higher abdominal obesity compared to Western populations. Despite registering a normal or low body mass index, individuals carry higher visceral and liver fat alongside reduced lean muscle mass, showing three to five percent more body fat at any given BMI level. Patients are also notably vulnerable to elevated triglycerides, lower HDL cholesterol levels, higher inflammatory markers, and a greater genetic burden of beta-cell dysfunction.
Unbalanced dietary habits compound these genetic and metabolic vulnerabilities. According to a national survey cited in the study, carbohydrates constitute 62.3 percent of daily energy intake among citizens, largely sourced from refined cereals, milled grains, and added sugars, while protein accounts for only 12 percent. Among diagnosed diabetes patients, just 14.8 percent achieved adequate protein intake, and only 21.2 percent met their daily fibre requirements.
Almost all surveyed experts—98 percent—concurred that diabetes manifests uniquely in India, with 86 percent noting that acknowledging this difference is critical for effective treatment. In identifying the primary contributors, 82 percent cited excessive carbohydrate consumption, 78 percent flagged central obesity, 76 percent highlighted insulin resistance, 75 percent pointed to inadequate protein intake, and 69 percent noted low muscle mass. Furthermore, 61 percent of specialists reported that more than half of their patients suffer from diabesity, a combination of diabetes and excess weight.
To address the issue, specialists advised moving away from Western nutritional guidelines in favour of personalised, dietitian-guided dietary plans tailored to local cultural, religious, and economic realities. The panel recommended substituting refined and fried items with complex carbohydrates, nuts, fruits, vegetables, and millets, while incorporating South Asian-specific cut-offs for weight, BMI, waist circumference, and lipid evaluations.
Long-term treatment adherence remains a substantial barrier. Most surveyed clinicians noted that 25 percent or fewer patients maintain dietary modifications past six months, with rural populations facing acute shortages of qualified dietitians and affordable nutritional products.
