More and more, ours is a worn out, sleep-deprived, distracted nation. It’s no wonder a shot of energy and focus would appeal to many of us. And that’s exactly what B12 injections deliver—literally—for ...

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It's the latest celebrity craze, with everyone from Madonna and Victoria Beckham to Justin Timberlake and Katy Perry supposedly getting a boost from vitamin B12. But what does it do, and do you need ...

Vitamin B12 is a key building block for the brain, and evidence suggests that vitamin B12 deficiency is linked with treatment-resistant depression, anxiety, panic disorder, and even cognitive decline ...