Nutrition

For something your body needs in micrograms, vitamin B12 plays a macro role in how you think, feel, and function. It's one of the most overlooked drivers of mental clarity, emotional balance, and long-term brain health — and yet deficiency remains surprisingly common, even among people who feel “mostly fine.”

Why B12 Matters for the Brain

Vitamin B12 (cobalamin) is essential for keeping your nervous system running smoothly. It’s involved in:

• Myelin production – Myelin is the fatty sheath that insulates your nerve fibres. Without enough B12, nerve signalling slows and can misfire.

• Neurotransmitter synthesis – B12 helps your brain make serotonin, dopamine, and norepinephrine — the very chemicals involved in mood, motivation, and mental energy.

• DNA and red blood cell formation – Vital for oxygen delivery to brain cells and cognitive sharpness.

• Methylation and detox – B12 fuels methylation, a key process that clears out neurotoxins and regulates gene expression in brain tissue.

Even a marginal