A vitamin B12 deficiency can cause cognitive issues, muscle weakness and other problems. Here's how to make sure you're getting enough vitamin B12.

Vitamin B12 is important for the health of your nervous system and your red blood cells. It can be found in many animal products and fortified foods. In the United States, about 6% of people under age ...

It’s normal to wonder if you’re meeting your nutritional needs if you’re feeling off in your day-to-day. Vitamin B12 should be on your radar, especially if you follow a plant-based diet. Eating a diet ...

Medically reviewed by Gurdeep S. Sareen, PharmD Key Takeaways Magnesium and vitamin B12 play essential roles in energy ...

Q: I’m tired often and heard that vitamin B12 can help with fatigue and boost energy levels. Should I be taking a supplement? A: There’s no proven benefit to taking vitamin B12 for fatigue unless you ...

As you age, it is important to take care of your body more than you might have in your youth. There are certain necessary vitamins and minerals that with time, become harder for the body to process or ...

A potential cause of leg cramps is a vitamin deficiency, though research into this is ongoing. Vitamins B1, B12, and D may help relieve them, along with potassium and magnesium. This article discusses ...

Many people may take supplements that contain B vitamins. Some research has linked B vitamins with an increased risk of lung cancer. Over recent years, some research studies have found associations ...

A vitamin B12 deficiency does not appear to be a sign of cancer. However, research suggests that there might be an association between vitamin B12 deficiency and cancer risk, particularly stomach and ...