Tag

Vitamin B12

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An antibody blocking B12 from reaching the brain was found in over half of unexplained spinal cord cases

Idiopathic myelopathy means the spinal cord is failing and nobody knows why. Testing 32 such patients turned up an autoantibody against the receptor that carries vitamin B12 into cells, in 18 of them.

Sep 7, 2026

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News

B vitamins tracked slightly less breast cancer, but not in women drinking more than a glass a day

Folate and its relatives have been circling breast cancer research for decades without resolving. A nested study found small protective associations, and found they disappeared above a specific drinking threshold.

Sep 6, 2026

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verdict

Vitamin B12: uses, evidence, dosing and safety

B12 inverts the usual advice here. Most people do not need it, but vegans, older adults and anyone on long-term metformin do, because untreated deficiency damages nerves in ways that may never reverse.

Aug 3, 2026