The pollution and smog levels in Delhi–NCR are worsening constantly. The air has become so thick with dust and smoke that even sunlight is unable to reach people properly. This is now directly affecting public health — especially by causing a sharp rise in Vitamin D deficiency.
Smog Blocking Sunlight, Causing Severe Vitamin D Deficit
Experts explain that the thick layer of pollution prevents UVB rays from reaching the ground. These rays are essential for the human body to naturally produce Vitamin D.
Because of this, people across Delhi–NCR are experiencing a rapid increase in deficiency during this season.
Winter Makes the Problem Even Worse
Between November and January, sunlight is already weaker. On top of that, dense smog further reduces the strength of sunlight.
As a result, people are unable to receive the natural Vitamin D they normally get from sun exposure.
How Much Vitamin D Should You Take?
Doctors say that during the pollution-heavy winter months, people should add Vitamin D supplements to their routine. Recommended doses:
- Adults: 2000 IU daily
- Teenagers: 1000 IU
- Children: 600–1000 IU
How Common Is Vitamin D Deficiency in India?
According to a report by ICRIER and Anvka Foundation, nearly one in every five Indians suffers from Vitamin D deficiency.
The problem is worst in eastern India, where around 39% of people are affected.
Research also shows that urban residents are more likely to suffer than those in rural areas, mainly because they spend long hours indoors in homes and offices and get less sunlight.
Too Much Vitamin D Can Be Harmful
Doctors warn that excess Vitamin D can cause hypercalcemia, a condition that may lead to:
- Excessive thirst
- Weakness
- Frequent urination
- Kidney stones
Common Symptoms of Vitamin D Deficiency
Some of the usual signs include:
- Constant fatigue
- Bone and back pain
- Muscle weakness
- Frequent infections
- Mood changes
- Slow wound healing
