I didn't know I was lacking in Vitamin D until I collapsed at work

A 23-year-old UK teacher collapsed at work with dizziness, nausea, and heart palpitations, only to discover she had severely low vitamin D levels through blood tests. The UK is experiencing rising vitamin D deficiency rates, particularly among girls and young women aged 11-18, with nearly a quarter classified as deficient according to recent data. Doctors warn that vitamin D deficiency is a "silent disease" that is difficult to detect and can be misdiagnosed, as symptoms are often overlooked despite the condition's link to bone weakening.