Delhi's Dangerous Smog Creates Silent Vitamin D Crisis: Health Experts Warn of "Sunshine Deficiency"

Nov 05, 2025 08:01 pm CST

As Delhi's air quality reaches severe levels, medical experts are warning about a hidden health crisis: widespread vitamin D deficiency caused by smog blocking essential sunlight. With PM 2.5 levels exceeding WHO limits by 30 times, doctors now recommend supplements and dietary changes to combat this "sunshine deficiency" affecting urban residents, especially as one in five Indians already suffers from vitamin D insufficiency.