Vitamin D Deficiency

Low levels of vitamin D in the body, which can weaken bones and muscles. It's very common in India despite plenty of sunshine.

NutritionBonesLast updated: 21 October 2026

Quick Summary

Primary Symptoms

Often none. Sometimes bone pain, muscle weakness, tiredness, and in children, rickets.

Common Treatments

Vitamin D supplements as advised by a doctor, sunlight exposure and foods with vitamin D.

Risk Factors

Little time outdoors, covering skin, darker skin, indoor work, obesity, older age and some medical conditions.

OverviewSymptomsCausesTreatmentFAQ

Overview

Vitamin D helps the body absorb calcium and keep bones and muscles strong. The skin makes it from sunlight; some comes from food.

Indoor lifestyles, pollution and clothing mean many people in India have low levels.

Symptoms

Bone pain

Aching bones, especially the back and legs.

Muscle weakness

And tiredness.

Rickets in children

Bowed legs and delayed growth.

No symptoms

Many people only find out from a blood test.

Causes & Risk Factors

Biological Causes

Not enough sunlight on the skin, low dietary intake or problems absorbing vitamin D.

Key Risk Factors

  • Indoor life Office work and staying indoors.
  • Skin and clothing Darker skin and covering most of the body.
  • Health conditions Obesity, kidney or liver disease and some medicines.

Management & Treatment

01. Supplements

Vitamin D (cholecalciferol) in the amount your doctor recommends.

02. Sunlight

Some time in the sun on arms and face, avoiding sunburn.

03. Diet

Fortified milk, eggs and oily fish.

Frequently Asked Questions

Can I take too much vitamin D?
Yes. Very high doses can be harmful, so follow medical advice.
Should everyone be tested?
Not always. Ask your doctor if you have symptoms or risk factors.
Is sunlight enough?
It helps, but many people still need supplements.

Sources and further reading

Last updated 21 October 2026. For more detail, see these trusted health organisations.