Dr. Archita Mahajan, a Nutritionist, Dietitian, Child Care expert with a Master’s degree in Food, Nutrition and Dietetics, Homeopathic Pharmacist, and trained Yoga Teacher, has shared important insights about a new scientific study linking high-altitude living to a lower risk of Type 2 diabetes. She has been nominated for the Padma Bhushan National Award and honored by the Punjab Government, Himachal Government, and the Lieutenant Governor of Ladakh, Shri Kavinder Gupta.
According to Dr. Mahajan, people living in mountainous or high-altitude regions may have a significantly lower risk of developing diabetes. The findings are based on research conducted by scientists at the Gladstone Institutes.
How High Altitude Affects Blood Sugar
Researchers found that at higher altitudes, oxygen levels in the air are lower — a condition known as hypoxia. To adapt to reduced oxygen availability, the body’s red blood cells (RBCs) undergo major functional changes.
In low-oxygen conditions, red blood cells begin acting like a “sugar sponge,” rapidly absorbing large amounts of glucose from the bloodstream. This process helps reduce blood sugar levels more efficiently.
The idea emerged from earlier laboratory experiments where mice were exposed to hypoxic conditions similar to high-altitude environments. Scientists observed that:
- Blood sugar levels dropped initially.
- After meals, glucose disappeared from the bloodstream much faster than normal.
- Mice produced more red blood cells.
- Each red blood cell used more glucose than usual.
Advanced scanning tools revealed that RBCs were absorbing significantly higher amounts of sugar.
Why This Matters for Diabetes Risk
Further investigation showed that red blood cells use the extra glucose to accelerate oxygen delivery to body tissues — a crucial adaptation when oxygen is scarce. Since lower blood sugar levels are generally associated with reduced diabetes risk, this mechanism may explain why high-altitude populations show lower rates of Type 2 diabetes.
Studies have observed this trend in populations living in the Andes, the Himalayas, and other mountainous regions. People residing at sea level appear to have a comparatively higher risk of developing Type 2 diabetes.
Scientists have long believed that thin air at high elevations changes how the body manages energy. At higher altitudes, the body burns more calories, produces more red blood cells, and alters glucose metabolism. However, until now, the precise biological reason behind the reduced diabetes risk was not clearly understood.
This new research offers valuable insight into how oxygen levels influence blood sugar regulation and metabolic health.
A Promising Direction for Future Research
While moving to high altitudes is not a prescribed treatment for diabetes, the study opens doors for new therapies that mimic the body’s natural response to low oxygen levels. Experts believe understanding this glucose-absorbing mechanism could help develop innovative strategies for diabetes prevention and management.
Dr. Mahajan emphasizes that maintaining a healthy lifestyle, balanced diet, and regular physical activity remain essential in preventing diabetes, regardless of altitude.
