You would think a city as sunny as Gujranwala would have no shortage of vitamin D. Yet low vitamin D is one of the most common results we see, and it gets worse every winter.
Shorter days, smog that blocks sunlight, and long hours indoors all add up. If you have been feeling achy, tired or low on energy as the weather turns, a vitamin D test may be worth doing.
Quick Answers
- Most people need vitamin D from sunlight on the skin. Winter and smog cut this down sharply.
- Common signs of deficiency are bone and back pain, muscle cramps, weakness and tiredness. Many people have no symptoms at all.
- A level of 30 to 100 ng/mL is generally considered sufficient. Below 20 is low.
- A Vitamin D test needs no fasting.
- Do not take high dose injections without testing first. Too much vitamin D is harmful.
Why Vitamin D Drops in Winter
Your skin makes vitamin D when sunlight’s UVB rays reach it. In winter, the sun sits lower in the sky, so fewer UVB rays reach the ground. In November and December, Punjab’s smog blocks even more.
Add to that our routines: offices, classrooms and homes during the brightest hours, full sleeves and shawls when outdoors, and darker skin, which needs more sun to make the same amount of vitamin D. The result is that a large share of adults in Pakistan run low, especially women.
Signs of Low Vitamin D
- Aching bones, especially lower back, hips and legs
- Muscle cramps, weakness, or difficulty climbing stairs
- Feeling tired all the time, even after sleep
- Low mood in winter
- Frequent colds and infections
- In children, delayed walking or bowed legs (rickets)
These symptoms overlap with anaemia and thyroid problems, which is why a blood test is more reliable than guessing. Our guide on feeling tired all the time covers the other common causes.
Who Should Get Tested?
- Women who stay mostly indoors, especially those who cover fully outdoors
- Adults over 50
- People with aches, cramps or constant tiredness
- Pregnant and breastfeeding women
- Office and night shift workers
- People with diabetes, kidney or liver disease
Understanding Your Result
| Vitamin D (ng/mL) | What it usually means |
|---|---|
| Below 12 | Deficient; a treatment course is usually started |
| 12 to 20 | Low; supplements usually advised |
| 20 to 30 | Insufficient; a maintenance dose is often suggested in winter |
| 30 to 100 | Sufficient for most people |
| Above 100 | Too high; stop supplements and see your doctor |
Many doctors also check Calcium at the same time, since vitamin D helps your body absorb it. In some cases they add phosphate or parathyroid hormone (PTH) to get the full bone picture.
Treating Low Vitamin D Safely
If your level is low, your doctor will usually prescribe a course of vitamin D, either weekly capsules, sachets or, sometimes, an injection, followed by a lower maintenance dose.
A few things to keep in mind:
- Do not stack doses. Taking injections from one doctor and sachets from another is a common way to overdose.
- Retest after about 3 months of treatment, as your doctor advises, to check the level has come up.
- Get some sun. On clear days, 15 to 20 minutes of midday sun on the arms and face helps, but in smog season this alone is rarely enough.
- Eat vitamin D foods. Egg yolks, oily fish like rohu and salmon, and fortified milk help a little.
Vitamin D Testing in Gujranwala
See the Vitamin D test and Calcium test pages for the current price and how to prepare. Book free home sampling, or visit a branch, no appointment needed. You can find every branch address on our locations page.
If you want vitamin D checked along with a full yearly checkup, our Comprehensive Wellness Profile includes vitamin D, B12, calcium and much more.
Further reading: Vitamin D Test (MedlinePlus).
Frequently Asked Questions
Do I need to fast for a vitamin D test?
No. You can eat and drink normally.
How long does vitamin D take to come up?
Most people see their level rise within 8 to 12 weeks of a treatment course. Symptoms like aches often improve sooner.
Can I take vitamin D without a test?
A standard daily dose is generally safe for most adults, but high dose injections and weekly 50,000 unit capsules should only be taken after testing and on a doctor’s advice.
What is the normal vitamin D level?
Most labs consider 30 to 100 ng/mL sufficient. 20 to 30 is insufficient and below 20 is deficient.
Is vitamin D included in a full body checkup?
Yes, our Comprehensive Wellness Profile includes vitamin D. The basic and essential packages do not, but you can add it.
This guide is general health information from the City Care Lab team in Gujranwala. It does not replace advice from your own doctor.