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 ...

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 ...

Almost a year after the birth of my second child, my body felt broken. Every virus my kids had, I caught, too, and sleep deprivation, lack of exercise, and a rotten diet—the trifecta experienced by ...

ASK DOCTOR K Anthony L. Komaroff, M.D. DEAR DOCTOR K: My new doctor recently told me I had pernicious anemia, that it had not been diagnosed by my old doctor and that his treatments would end my ...

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, ...

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 ...

Feeling sluggish? Gaining weight? What you need is a shot in the arm, claim advertisers for trendy vitamin B12 injections. Don’t let marketers needle you. “If medical testing confirms that an ...

Ever get that tingly feeling in your feet and hands? Are you a little more tired than usual? Unusually fatigued? Does even your brain feel drained? Have a migraine headache, too? It could be you're ...