Vitamin B12 is typically well-tolerated, but in very rare cases, there are serious side effects to be aware of. Learn more about them here.

Brits plagued by forgetfulness are being told to get their vitamin levels checked, as running low on a crucial nutrient can ...

Share on Pinterest Scientists have found a link between B12 levels and cognitive health in older adults. Milan Markovic/Getty Images Vitamin B12 is needed for the development and function of nerve ...

The basis for these questions is the fact that levels of all 3 of these substances (hormones, vitamins, and elements) are in some way dependent on or related to gastric acid secretion. As such, any ...

People who sit on the low or high side of normal vitamin B12 levels are still at risk of cognitive impairment, according to a new study. The researchers behind the study say we need to rethink the ...

A vitamin B12 deficiency, whether because you're not getting enough B12 or aren't absorbing it well, can cause symptoms like fatigue, difficulty walking, weakness, and confusion. Find out if you may ...

A neurologist explains how common medications can cause vitamin B12 deficiency, damage nerves over time, and trigger numbness, memory issues, and fatigue.