Why a simple vitamin deficiency left a 70-year-old woman unable to walk

For six weeks, a 70-year-old woman lived in constant terror of falling, convinced her balance was failing.

She sought answers from numerous specialists, but despite clear MRI scans and stable blood pressure, the sensation persisted.

Dr Sudhir Kumar, a neurologist at Apollo Hospitals, shared that she described it as “the ground moving under my feet... There was no spinning sensation... yet her symptoms persisted.”

The breakthrough came not from advanced imaging, but from a physical examination of her feet. Dr Kumar discovered that her brain was simply not receiving signals from her limbs—a condition called sensory ataxia.

The culprit was her strict vegetarian diet, which lacked the necessary dairy or supplements to maintain her health.

A blood test confirmed a severe vitamin B12 deficiency, with levels at a dangerously low 153 pg/mL.

Without B12, the nerves responsible for balance began to fail. Dr Kumar highlighted that this serves as a cautionary tale: “Sometimes, the diagnosis is not hidden in the scan; it is hidden in the toes.”

Rather than complex surgery, the patient was prescribed simple vitamin B12 injections. The transformation was rapid; her gait steadied, and her fear vanished.

Dr Kumar urges those on plant-based diets to be vigilant, noting that "MRI isn't everything." While a scan might look perfect, nutritional gaps can cause real, reversible nerve damage.

He insists that diet matters immensely, and early intervention is the key to preventing permanent disability. For this patient, the cure was as straightforward as the diagnosis was elusive.

This article is solely for informational purposes and not a replacement for professional medical advice.