India, Dec. 25 -- Vitamin D deficiency is far more widespread than most people realise - and winter only makes the problem worse. With shorter days and reduced sunlight exposure, levels tend to drop just when the body needs support the most. Yet many people still don't fully understand how vitamin D actually works, often treating it like a simple supplement rather than a powerful regulator of multiple bodily functions.

The result? Ineffective dosing, poor absorption and persistent deficiency. The good news is that optimising vitamin D levels isn't just possible - it's also about understanding the science and taking a smarter, more holistic approach.

Ismat Khoja, a licensed physiotherapist and wellness coach based in Dubai, has highlight...