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Fortis Delhi gastroenterologist explains why ‘4 in 5 Indians are vitamin D deficient’ despite good diet and sunlight

Published on: Feb 1, 2026, 15:57:41 IST
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Dr Shubham highlights the risks of vitamin D deficiency on bones, immunity, and mood. (Shutterstock)
Dr Shubham highlights the risks of vitamin D deficiency on bones, immunity, and mood. (Shutterstock)

Despite a good diet and sunlight, many Indians lack vitamin D. Gastroenterologist Dr Shubham Vatsya explains why this silent deficiency is so widespread.

Vitamin D deficiency is alarmingly common in India, even among people who believe they eat well and get enough sunlight. Dr Shubham Vatsya, a gastroenterologist and hepatologist at Fortis Hospital, Vasant Kunj, Delhi, with more than 10 years of experience, shares in his January 31 Instagram post the real reasons behind this widespread deficiency and why it often goes unnoticed. (Also read: Bengaluru fitness coach shares simple ‘high-protein diet hack’ to lose weight sustainably: ‘Moong sprouts contain 25 g…’ )

Why is vitamin D deficiency so common in India

Vitamin D deficiency is a widespread but often overlooked health concern in India. Explaining its impact, Dr Shubham says, “4 out of every 5 Indians are vitamin D deficient. Vitamin D is a hormone-like nutrient that helps coordinate multiple systems in the body, and when there is a deficiency, several body systems are affected at the same time.”

“The first impact is seen on the bones and muscles. Vitamin D helps the gut absorb calcium, and its deficiency can lead to bone pain, frequent muscle cramps and, over time, osteoporosis, even in young adults,” says Dr Shubham.

How low vitamin D affect immunity

He adds that vitamin D also plays a key role in immunity and infection control by activating immune cells, which is why people with low levels are more prone to colds, flu, respiratory infections and fatigue. Another often ignored effect of vitamin D deficiency is on energy, mood and metabolism, as adequate levels help improve insulin sensitivity, support mood-related hormones and reduce chronic tiredness.

Dr Vatsya advises against self-medication and stresses that vitamin D supplements should only be taken after consulting a doctor, getting levels checked and following the prescribed dosage.

Note to readers: This report is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.

This article is for informational purposes only and not a substitute for professional medical advice.

  • Akanksha Agnihotri
    ABOUT THE AUTHOR
    Akanksha Agnihotri

    Akanksha Agnihotri is a lifestyle journalist with over 3 years of experience. She is a psychology graduate and holds a postgraduate diploma in Radio and Television Journalism from the Indian Institute of Mass Communication, Delhi, where she graduated as a gold medalist. Originally from Bhopal, the beautiful capital of Madhya Pradesh, she draws inspiration from the city’s rich cultural heritage and layered storytelling traditions that subtly shape her narrative voice. She writes extensively about fashion, beauty, health, relationships, culture, and food, exploring everything from trending styles and runway moments to wellness routines and mindful living. Passionate about meaningful and candid conversations, she enjoys interviewing celebrities, doctors, designers, and film personalities, diving into discussions on fitness, beauty, mental health, and everything fun in between. With a keen eye for trends and a thoughtful understanding of human behaviour, she brings depth, sensitivity, and authenticity to her stories, ensuring they resonate with a wide and diverse audience. When she’s not working, you’ll usually find her lost in a book, planning her next mountain trek, or mapping out spontaneous travel escapes. She loves discovering new authors, revisiting old favourites, and spending quiet afternoons in museums soaking in art, history, and culture. An avid bird-watching enthusiast, she finds joy in early morning walks, spotting rare birds, and reconnecting with nature. Whether sipping coffee while journaling her thoughts or exploring hidden corners of a new city, she constantly seeks inspiration in everyday moments that often turn into compelling story ideas.Read More

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