Vitamin D Deficiency: Symptoms, Tests and Treatment
It surprises many people, but vitamin D deficiency is one of the most common health problems in Pakistan. Studies in Pakistani cities have repeatedly found low vitamin D levels in a large share of adults, especially women. Indoor lifestyles, covered clothing, air pollution and darker skin, which needs more sun to make vitamin D, all play a part.
Why vitamin D matters
Vitamin D helps your body absorb calcium from food, which keeps bones and teeth strong. It also supports muscle strength and the immune system. Long-term deficiency can lead to rickets in children and to soft, weak bones (osteomalacia) and osteoporosis in adults.
Symptoms of low vitamin D
Many people have no clear symptoms. When they do appear, they are often vague:
- Tiredness and low energy
- Aching bones, especially in the back, hips and legs
- Muscle weakness or cramps, and difficulty climbing stairs
- Frequent colds and infections
- Low mood
- In children, delayed walking, bowed legs or slow growth
Getting tested
A simple blood test called 25-hydroxy vitamin D measures your level. Most laboratories in Pakistan use these ranges:
- Below 20 ng/mL: deficient
- 20 to 29 ng/mL: insufficient
- 30 ng/mL and above: sufficient
Your doctor may also check calcium and other tests, especially if you have bone pain.
How vitamin D deficiency is treated
Treatment usually uses vitamin D3 (cholecalciferol). In Pakistan it is available as weekly or monthly high-dose capsules and sachets, daily drops for children, and injections. A common approach is a few weeks of high-dose treatment to correct the deficiency, followed by a lower maintenance dose.
- High-dose vitamin D should be taken only as prescribed. Too much over time can raise calcium levels and harm the kidneys.
- Take capsules or sachets with a meal that contains some fat, which helps absorption.
- Your doctor may add calcium if your diet is low in dairy.
- Recheck your level after about 3 months, as advised.
Oral vitamin D works well for most people. Injections are useful in some situations, but they are not stronger or faster for everyone.
Sunlight and food
Around 15 to 30 minutes of sun on the face, arms and legs, a few times a week, helps the skin make vitamin D. Late morning to early afternoon is most effective, but avoid sunburn in the hottest months. Sunlight through glass does not count.
Food sources include oily fish such as salmon and mackerel, egg yolks, and milk or cooking oil fortified with vitamin D. Diet alone is rarely enough to correct a deficiency, but it helps maintain levels.
Who is most at risk?
- Women, particularly during pregnancy and breastfeeding
- Babies who are exclusively breastfed
- Older adults
- People who stay indoors most of the day or cover most of their skin
- People with obesity, kidney or liver disease, or conditions that affect absorption
Key takeaways
- Vitamin D deficiency is very common in Pakistan and often causes tiredness and body aches.
- A 25-hydroxy vitamin D blood test confirms it.
- Vitamin D3 treats it effectively, but high doses should follow a doctor’s plan.
- Regular safe sun exposure and a balanced diet help keep levels healthy.
See vitamin D3 and calcium products for vitamin D deficiency on Medimart.
This guide is for general information and does not replace advice from a doctor.