Getting enough vitamin B12 to meet current health guidelines may not actually be enough to protect the aging brain.

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Brandi Jones has over two decades of experience as a nurse in an acute care setting. Her clinical background includes pediatrics, medical-surgical, and women's health. She also specializes in ...

The vitamin K shot at birth is a lifesaving intervention, but more parents are refusing it—with deadly consequences ...

B12 is vital for red blood cells, nerves and DNA, but unexplained high levels may point to an underlying health problem.

Vitamin B12 is an essential nutrient for energy and nerve function. It's one of the more common nutrient deficiencies in the UK. While most people should be able to get enough from their diet, there ...

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A new Cornell study suggests vitamin B12 plays a far broader role in human biology than previously understood, influencing key metabolic pathways linked to aging, muscle function and disease risk.

Having worked at the BBC and in commercial radio before joining Which?, James produces our always-on podcasts, and oversaw the launch of our member-exclusive podcasts in 2025. Save article Set as ...

Vitamin B12 helps your body turn food into energy, supporting your metabolism. People with obesity often have lower levels of vitamin B12. Low B12 levels can cause fatigue and brain fog, making it ...

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Becca Stanek is an experienced writer and editor who is passionate about exploring the ways we can feel better mentally and physically to get the most out of our lives. She has worked for publications ...