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

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Vitamin B12 is essential for nerve function and red blood cell production, with daily needs varying by age, pregnancy status, ...

People who don’t get enough vitamin B12 through their diets may need a supplement to fill the gap. Here’s how much to take.

B vitamins support energy production, brain health, and red blood cell formation. B12 is especially important for nerve ...