B12 shots work fast but don’t last long. Most leaves your body within a day, though some is stored in the liver. Regular injections may be necessary to maintain steady levels, especially if you have ...

Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Take vitamin B12 on an empty stomach in the morning or early afternoon to maximize absorption and avoid sleep disruptions.Vegans, older adults, ...

If you’re enrolled in Medicare, these shots will be covered by Part B if you have them at a doctor’s office or a clinic or Part A if you get them while hospitalized. If you have vitamin B12 deficiency ...

Vitamin B12 deficiency causes a string of symptoms and some can remain even though your lab results come back normal ...

Vitamin B12 deficiency often begins in the brain, causing subtle changes in thinking and mood. These early signs can include ...

Vitamin B12 is essential for red blood cells, DNA synthesis and your cognitive health. Taking your vitamin B12 supplement at breakfast time may help with efficacy. While side effects are rare, vitamin ...

New York Yankees pitcher Roger Clemens is feeling the heat. A former trainer has said he injected the seven-time Cy Young winner with steroids and human growth hormone, but Clemens says the only ...

Vitamin B12 for weight loss: Does it work? Since the dawn of the Internet (and probably well before), there have been several solutions sold for weight management — including vitamins for weight loss.