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.

Add Yahoo as a preferred source to see more of our stories on Google. MicroStockHub/Getty Images Most people focus on getting common vitamins like A, C or D from their diet and they end up overlooking ...

Add Yahoo as a preferred source to see more of our stories on Google. Fatigue can be a sign of a potential B12 deficiency. Maca and Naca/E+ via Getty Images For several months during the summer of ...

Vitamin B12 deficiency is emerging as a common but often overlooked health issue among women, with symptoms ranging from ...

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

Vitamin B12 deficiency can cause anemia, nerve damage, cognitive changes, and mood symptoms. Experts warn it’s often missed, ...

Constant exhaustion is often dismissed as lifestyle-related, but experts warn it may signal vitamin B12 deficiency. This ...

Research has studied the link between vitamin B12 deficiency and cognitive decline in older people. More research is needed on that front, but the nutrient is essential for producing energy. Vitamin D ...

This article was reviewed by Lynn Marie Morski, MD, JD. Key Takeaways: There’s not much research on B12 shots for weight loss ...

Vitamin B12 is long understood as a vital nutrient required for red blood cell formation and nerve function, but a new ...

New research highlights that nutrient deficiencies are widespread among children with autism in Singapore, with risks tied to age and ethnicity rather than picky eating, underscoring the need for ...