In this global network study, researchers examined vitamin B12 levels as a possible biomarker for outcomes in colon cancer.

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.

A vitamin B12 blood test is a reliable way to determine if you have adequate levels of this crucial nutrient. Vitamin B12 is essential for nerve function, making red blood cells, and helping your body ...

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 ...

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