Think you know vitamin B12 deficiency? Know common myths, real symptoms, risk factors, and who truly needs testing to prevent ...

This article was reviewed by Lynn Marie Morski, MD, JD. There’s not much research on B12 shots for weight loss. People with obesity tend to have lower vitamin B12 levels, but it’s unclear if B12 shots ...

The recommended intake of vitamin B12 for people older than 14 is 2.4 micrograms a day. People who follow a vegetarian or vegan diet may need vitamin B12 supplements. Vitamin B12 injections can treat ...

Vitamin B-complex vitamins are an important part of the micronutrients found in a balanced diet. Vitamin B is a water-soluble vitamin. All B vitamins, B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 ...

Dear Doctor K: For years, my pernicious anemia was misdiagnosed as depression. Now that I have an accurate diagnosis, I'd like to learn more about my condition. Dear Reader: With pernicious anemia, ...

Like a toddler awaiting a set of booster shots, I fidgeted and focused, unhelpfully, on a long, thin needle in front of me. I was told to relax my arm, which had involuntarily tensed as a nearby ...

Vitamin B12 is crucial for brain and eye health, yet myths persist. An expert clarifies the most common misconceptions about this essential nutrient. | Health ...

A routine blood test. A casual follow-up. Then comes the surprise. “Doctor, my B12 is low? But I eat chicken and eggs ...

Vitamin B12 deficiency affects both vegetarians and non-vegetarians but is more common in plant-focused diets.