It is noteworthy that B12 deficiency is also associated with cognitive impairment, memory loss, dementia, and psychosis.

Scientists have found that those with lower B12 levels had slower processing speed, and higher levels were associated with ...

The cut-off between normal and deficient vitamin B12 blood levels varies by lab, but anything lower than 200 or 250 pg/mL is ...

The study's findings suggested a need for older adults to take supplements, even if their B12 levels were considered "normal" ...

Researchers found that people with lower levels of this vitamin had more lesions in the white matter in their brains, which ...

Your brain might not be getting enough B12 — even if your levels are considered "normal." A new study suggests that older ...

I f you've ever looked at a food's nutrition list or the label on a supplement bottle, you know there is a recommended daily ...

Feb. 18, 2025 — Meeting the minimum requirement for vitamin B12, needed to make DNA, red blood cells and nerve tissue, may not actually be enough -- particularly if you are older. It may even ...

Even when within the normal range, lower levels of vitamin B12 may contribute to cognitive decline, according to a new study.

Researchers measured their active B12 levels, which show how much of the vitamin the body can actually use. The participants ...

We are writing to respond to comments from Joshua W Miller and colleagues1 regarding our 2024 report of the Lancet standing Commission on dementia prevention, intervention, and care.2 Miller and ...