Vitamin D Deficiency in India: Symptoms, Levels and Treatment
Despite plenty of sunshine, vitamin D deficiency is widespread in India. Learn the symptoms, what your test result means, safe sun exposure, foods and supplements.
Medically reviewed by Doctoright Medical Review Panel · Written by Doctoright Editorial Team
Updated on · 2 min read
Key takeaways
- Studies suggest a large majority of Indians have low vitamin D, due to indoor lifestyles, covered skin, darker skin tone and pollution.
- Many people have no symptoms; others notice tiredness, bone pain, muscle weakness or frequent infections.
- Levels below 20 ng/mL are generally considered deficient; 30 ng/mL or above is often used as the target.
- Sensible sun exposure and doctor advised supplements correct deficiency: very high doses taken without supervision can be toxic.
It seems surprising in a sunny country, but vitamin D deficiency is extremely common in India across all ages, incomes and regions. Vitamin D helps your body absorb calcium for strong bones and supports muscles and the immune system.
Why so many Indians are deficient
- Indoor lifestyles: offices, schools and commuting in vehicles
- Covered skin due to clothing
- Darker skin, which needs more sun exposure to make the same amount of vitamin D
- Air pollution, which blocks UVB rays
- Vegetarian diets, since few plant foods contain vitamin D
- Obesity, older age and some medical conditions that affect absorption
Symptoms
Many people with low vitamin D feel fine. When symptoms appear, they can include:
- tiredness and low energy
- aches in bones, especially the lower back, hips and legs
- muscle weakness or cramps
- frequent infections
- low mood
Long term deficiency causes rickets in children (soft, bowed bones) and osteomalacia in adults, and contributes to osteoporosis and fractures in older people.
Understanding your test
The blood test is called 25 hydroxy vitamin D [25(OH)D].
| Level (ng/mL) | Interpretation |
|---|---|
| Below 20 | Deficient |
| 20 to 29 | Insufficient |
| 30 to 100 | Sufficient |
| Above 100 to 150 | Risk of toxicity |
Some labs report in nmol/L: divide by 2.5 to convert to ng/mL. Experts differ slightly on cutoffs, so discuss your result with your doctor.
Getting vitamin D from the sun
Your skin makes vitamin D when exposed to UVB light. Many Indian experts suggest exposing the arms and legs (or face, arms and back) for around 15 to 30 minutes in the middle of the day, a few times a week, since UVB is strongest then. People with darker skin may need longer. Don't let your skin burn, and use sunscreen for longer exposure.
Foods with vitamin D
Few foods are rich in vitamin D:
- fatty fish such as salmon, sardines, mackerel (bangda) and hilsa
- egg yolks
- mushrooms exposed to sunlight
- fortified milk, oil and cereals (look for the +F fortification logo)
Supplements
Doctors commonly prescribe cholecalciferol (vitamin D3) as daily, weekly or monthly doses (for example, sachets, capsules or chewable tablets) followed by a maintenance dose. Take it with a meal containing some fat for better absorption.
Vitamin D is fat soluble and builds up in the body. Taking high dose supplements for months without supervision can cause dangerously high calcium levels, kidney stones and vomiting. Recheck your level after about 3 months of treatment.
Who should get tested
Consider testing if you have bone pain, frequent fractures, osteoporosis, muscle weakness, long term use of steroids or anti seizure medicines, kidney or liver disease, or conditions that affect fat absorption. See also our guide to lower back pain.
How we reviewed this article: 4 sources
Doctoright has strict sourcing guidelines and relies on peer reviewed studies, academic research institutions and medical associations. Learn more.
- NHS. Vitamin D.
- Holick MF, et al. Evaluation, treatment, and prevention of vitamin D deficiency: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab. 2011.
- National Institutes of Health, Office of Dietary Supplements. Vitamin D fact sheet for consumers.
- ICMR National Institute of Nutrition. Nutrient Requirements for Indians, 2020.
Last medically reviewed on 1 October 2026. Originally published 14 August 2026.