Vitamin D plays a key role in bone health, the immune system and mood; but because of limited sun exposure and modern lifestyles, deficiency is very common in Iran. Common signs of deficiency include:
- Fatigue and general weakness without a clear reason
- Bone and joint pain, especially in the lower back and knees
- Hair loss and a weak immune system (frequent colds)
- Low mood in the darker seasons of the year
The best way to diagnose it for certain is a blood test (25-OH vitamin D); but alongside daily sun exposure, taking a vitamin D3 supplement at a suitable dose (as prescribed by a doctor or pharmacist) is the most effective way to correct a deficiency quickly. DrugKade stocks a range of vitamin D3 supplements in different strengths, with guaranteed authenticity.
