Vitamin B6 can also influence serotonin and dopamine levels, which can impact your sleep if taken too late, Keatley says.

In recent weeks, reports have been circulating about severe reactions in people who've taken over-the-counter vitamin B6 supplements. Vitamin B6 poisoning can injure nerves and lead to symptoms ...

Vitamin B12 is crucial for energy, brain function, red blood cell production, and nerve health.Vitamin B12 is essential for your body to function properly, and deficiency can lead to serious ...