A new nationwide study by Metropolis Healthcare Limited, one of India’s leading diagnostic chains led by Ameera Shah, has revealed alarming levels of Vitamin D deficiency among Indians. Based on the analysis of more than 22 lakh test results collected between 2019 and January 2025, the study found that 46.5% of individuals tested across the country were Vitamin D deficient, while another 26% had insufficient levels — underscoring a widespread nutritional gap in the population.

The study, conducted across multiple states and age groups, paints a concerning picture of India’s “sunshine vitamin” crisis. Despite being a tropical country with abundant sunlight, nearly three out of four Indians tested were found to have less-than-optimal Vitamin D levels.

Interestingly, the data also shows some signs of progress. The overall national deficiency rate has declined from 51% in 2019 to 43% in 2024, suggesting that awareness, urban health initiatives, and nutritional interventions are beginning to make a difference.

However, the challenge remains severe in South India, where Kerala, Puducherry, and Tamil Nadu recorded the highest deficiency rates, each crossing the 50% mark. Experts suggest that lifestyle changes, including reduced outdoor activity and increased indoor living, are major contributing factors — even in sunny regions.

Another key finding is the growing vulnerability among teenagers (13–18 years), who showed the highest deficiency rate at 66.9%, making adolescent Vitamin D deficiency an emerging public health concern.

On a positive note, the gender gap in Vitamin D deficiency appears to be narrowing. The study found 46.9% of women and 45.8% of men to be deficient, compared to earlier years when women consistently showed higher deficiency rates.

Health experts emphasize that Vitamin D plays a vital role in bone strength, immune function, and overall well-being. Deficiency has been linked to increased risks of osteoporosis, fatigue, depression, and chronic illnesses.

The Metropolis Healthcare study underscores the need for regular screening, balanced nutrition, and safe sun exposure as essential preventive measures. It also calls for greater public awareness about the importance of maintaining healthy Vitamin D levels, especially among youth and urban populations.

“This large-scale data gives us valuable insight into how lifestyle, diet, and environment are collectively impacting Vitamin D status across India. Awareness and early screening are key to reversing this trend,” said a spokesperson from Metropolis Healthcare.

As India continues its journey toward better nutritional health, the findings serve as a reminder that even a “sunny nation” is not immune to silent deficiencies that can have long-term consequences.