Nearly 39 per cent of urban Indians show blood-sugar dysfunction, a new national health study has found. Loop Health released its Workforce Health Index 2026 this week. It is the company’s largest assessment of urban workforce health so far.

The study analysed over 8,16,000 lab values from 11,400 health reports. It also covered 9,000 survey responses. Across employees and dependents, 38.7 per cent flagged blood-sugar dysfunction.

Among employees alone, 31.3 per cent showed dysfunction on HbA1c tests. The share rose with age. It was 16.7 per cent in the 20s, 33 per cent in the 30s and 52.9 per cent in the 40s.

Only 5.8 per cent of respondents said they had ever been diagnosed with diabetes. The gap points to large undetected risk. Nutritional gaps are also wide.

About 81.4 per cent of Vitamin D reports were below sufficiency. About 73.9 per cent showed low Vitamin B12. About 30.7 per cent of respondents slept less than six hours a night.

About 40.4 per cent reported high stress in the past week. Mumbai recorded the worst blood-sugar numbers among the five metros studied.